Answer:
The answer is True.
Explanation:
In a research that combined seismic, geologic and geodetic data regarding Northridge and Landers earthquakes, and assessed the two earthquakes, the Poissonian and seismic hazard models showed that there was between 80 and 90 per cent probability that Northridge and Landers earthquakes may be part of a pattern of increasing before any type of failure along the southern segment of the San Andreas.
Answer:
True
Explanation:
The Northridge earthquake took place on January 17, 1994 in the County of Los Angeles. The earthquake could be felt as far as Las Vegas, Nevada, and it had a death toll of 57, with more than 8,700 injured. On the other hand, the Landers earthquake took place on June 28, 1992 in Southern California. It had a magnitude of 7.3, and was much more powerful than the Northridge earthquake. Both of these are considered to be part of a pattern of increasing seismicity of the San Andreas fault.
Which of these statements is true about plate tectonics? Continental drift on the Earth is caused by circulating convection currents in the deep interior. Continental drift on Earth is caused by the slow precession of Earth's spin axis. Tidal forces from the Moon and Sun causes the slow drift of continental land masses. Two crustal plate boundaries can easily slide past each other because of the presence of seawater. The Mid‑Atlantic Ridge is an area of continuous seafloor erosion which creates powerful earthquakes along a subterranean mountain chain.
Answer:
continental drift on the Earth is caused by circulating convection currents in the deep interior
Explanation:
The Tectonic plates make up the earth's crust and the movement of these tectonic plates that make up the earth's crust is due to the movement of the Magma of the earths crust that flows/moves in the form of convectional currents.
The earths crust acts as the heat insulator which when heated up due to internal pressures releases hot Magma flowing in the form of convectional currents apart from the convectional currents causing the plate tectonics to move other factors like ridge push and slab pull can also cause the plates to move as well.
The true statement about plate tectonics is that continental drift is caused by circulating convection currents in the Earth's deep interior, which move the tectonic plates.
Explanation:The statement that is true about plate tectonics is: Continental drift on the Earth is caused by circulating convection currents in the deep interior. In the Earth's mantle, heat from the core causes convection currents. These currents cause molten rock to flow, which moves the tectonic plates - large sections of the Earth's crust - on the Earth's surface. This process is behind continental drift.
Continental drift has no direct link to the precession of the Earth's spin axis. Tidal forces from the Moon and Sun affect Earth's water bodies, but not the drift of continental land masses. Seawater does not enable plate boundaries to slide past each other more easily and the Mid-Atlantic Ridge, a result of divergent plate boundaries, is a site of seafloor spreading, rather than continuous erosion and source of earthquakes.
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The sequence of deposition is a puzzle that geologists often have to solve. Study the relative positions of the rock layers while considering how this outcrop formed, and then read the following statements and determine which are correct. Select the three that apply. View Available Hint(s)
A close inspection of the sediments near the measuring stick shows no evidence of erosion or weathering.
The environmental conditions (e.g., wind, amount of ash) were similar during deposition of these sediments.
The layer at the bottom of the measuring stick was deposited prior to the layer at the top of the measuring stick.
There is a large clast (a fragment of rock) that appears to be different from and inserted into the sediment.
There is evidence of changes in how sediment was transported during deposition of these sediments.
Answer:
The layer at the bottom of the measuring stick was deposited prior to the layer at the top of the measuring stick. There is a large clast (a fragment of rock) that appears to be different from and inserted into the sediment. There is evidence of changes in how sediment was transported during deposition of these sediments.Explanation:
The geologist who studies the sequence of the rocks and that is relative to the layers of the rocks and as the layers of the bottom is aired of the stick deposits before the layers of the measuring and there is a large class of a fragment of the rocks. That appears to be different from the to intersect into the sediments and there is an evidence of the changes in how sediments were transported and deposited during these sediments.On 9 January 1857, the San Andreas fault segment between Cholame and San Bernardino broke loose at its northwestern end, and the rupture propagated southeastward in the great __________ earthquake with a magnitude of about 7.9.
Answer:
On 9 January 1857, the San Andreas fault segment between Cholame and San Bernardino broke loose at its northwestern end, and the rupture propagated southeastward in the great Fort Tejon earthquake with a magnitude of about 7.9.
Explanation:
The Fort Tejon earthquake, which occurred on January 9, 1857, is considered the strongest earthquake that shook the state of California. It is estimated at a strength of 7.9. Its strength is therefore comparable to that of the 1906 San Francisco earthquake. It occurred along the San Andreas Fault 362 kilometers between Parkfield and San Bernardino. The two plates that meet along this disturbance shifted up to nine meters during this quake.
California was still sparsely populated in 1857. Unlike the New Madrid earthquake of 1811, there are hardly any records of people who have experienced this earthquake. For this reason it is only known among seismologists. According to current research, its epicenter was located near the California city of Parkfield. However, it got its name because of the army camp Fort Tejon, which was located on the Tejon Pass, reported it.
Only one death was reported as a result of the earthquake. The person died in the collapse of an adobe house at Reed’s Ranch in Gorman, very close to the fault. Most of the buildings in Fort Tejon were badly damaged and several people were injured. Some buildings in Los Angeles were destroyed, but no major damage was reported.
Final answer:
The rupture that occurred on 9 January 1857 on the San Andreas fault was the great Fort Tejon earthquake, with a magnitude of about 7.9, indicating the significance of seismic activity along the fault.
Explanation:
On 9 January 1857, the San Andreas fault segment between Cholame and San Bernardino broke loose at its northwestern end, and the rupture propagated southeastward in the great Fort Tejon earthquake with a magnitude of about 7.9. This event, alongside others such as the 1906 San Francisco Earthquake, underscores the seismic activity along the San Andreas Fault and the potential for future significant seismic events. While some areas of the fault show moderate seismic activity like Parkfield, others such as parts of the 1906 and 1857 ruptures have low seismicity, suggesting a potential for larger earthquakes almost up to a magnitude of 8.
Tsunami wavelengths can be as great as ____________.
A. 840 m
B. 8400 m
C. 84 km
D. 840 km
E. 8400 km
Answer
Tsunami wavelengths can be as great as 840 km
Answer:
D option 840km
Explanation:w
A tsunami is a series of great sea waves caused by underwater earthquake, landslide and volcanic eruption. Tsunami waves can be as long as 60 miles or 100 kilometers and can be as far as one hour apart.
Japan's population______________.a. is expected to decline over the next half-century b. is concentrated along the shore of the Sea of Japan (East Sea) exhibits a low rate of literacy c. is concentrated on Hokkaido and Shikoku d. is reflective of a multicultural society
Answer: Japan's population is expected to decline over the next half-century
Explanation: According to The Japan Times Online,it stated that in 2014, Japan's population was estimated at 127 million; this figure is expected to shrink to 107 million (16%) by 2040 and to 97 million (24%) by 2050 should the current demographic trend continue. This population decline began in the year 2011. This because the elderly population of Japan is really high. According to 2014 estimates, 33.0% of the Japanese population is above the age of 60, 25.9% are aged 65 or above, and 12.5% are aged 75 or above.
Bipedalism has traditionally been viewed as an adaptation to open grassland or savanna country, although Ardipithecus lived in a humid woodland habitat. Perhaps bipedalism developed in the woodlands but became even more adaptive in a savanna habitat.
True or false?
Answer:
True
Explanation:
Bipedalism has traditionally been viewed as an adaptation to open grassland or savanna country, although Ardipithecus lived in a humid woodland habitat. Perhaps bipedalism developed in the woodlands but became even more adaptive in a savanna habitat.
Ardipithecus is a genus of an extinct hominine that lived during the Late Miocene and Early Pliocene epochs in the Afar Depression, Ethiopia.
An old, failed rift under the central United States is believed to represent a zone of weakness in the lithosphere and a possible earthquake hazard zone. True False
Answer:
True
Explanation:
A failed rift occurs when there is a failed continental rifting whose activities continued until the point of breakup. An example is in the Eastern part of Nigeria which is dominated by the Benue trough which trends Northeast is considered as a failed rift.
A large, major hurricane is predicted to come ashore with its eye near the Louisiana/Mississippi border. You are asked to recommend if more resources should be sent to Louisiana or to Mississippi in preparation. What do you recommend
Answer: As a consultant for such a large disaster, I would recommend that instead of focusing on resources to Louisiana or Mississippi, the authorities should focus more on the EVACUATION OF PEOPLE from those locations. In my opinion, this is the best option because it is better to be safe than sorry. Since it was predicted that the hurricane that is approaching is large and major, the extent of the damage will definitely be large and major. The best thing will be for the hurricane to come and meet no one, than come and meet people.
Explanation:
What is the gaseous part of the earth called? What are the oceans, the lakes, and the rivers of the earth called? What is the solid part of the earth called?
Answer:
The gaseous part of the earth is known as the ATMOSPHERE. Atmosphere from from Greek atmos ‘vapour’ + sphaira ‘ball, globe’.
The oceans, the lakes, and the rivers of the earth are called the HYDROSPHERE.
From the Greek root hydro-, "water," and Greek sphaira, "globe or ball".
The solid part of the earth called the LITHOSPHERE.
Litho" is from the Greek word lithos, meaning stone. "Sphere" is from the Greek word sphaira, meaning globe or ball.
Imagine two adjacent playing fields, one with a wet surface and the other with a dry surface.
If you simultaneously measured air temperature above each surface on a sunny summer afternoon, where would you expect the higher temperature? Why?
a. Above the dry field. Because of the presence of water, more solar energy is reflected from the wet field surface, and hence its temperature stays cooler,
b. Above the wet field. Thanks to the hydrogen bonds, water can absorb a lot of heat, thus keeping the wet surface warmer.
c. Above the dry field. Evaporation of water over the wet field requires extra energy, which keeps the surface cooler.
d. Above the wet field, because it has a lower albedo.
Answer:
(C) Above the dry field. Evaporation of water over the wet field requires extra energy, which keeps the surface cooler.
EXPLANATION:
If you simultaneously measured air temperature above a dry and wet surface on a sunny summer afternoon, you would expect the higher temperature above the dry surface because Evaporation of water over the wet field requires extra energy, which keeps the surface cooler. It takes more energy to heat and cool water than it does dry ground
Answer:
c. Above the dry field. Evaporation of water over the wet field requires extra energy, which keeps the surface cooler.
Explanation:
Out of these two playing fields, the one with a dry surface would most likely have the higher temperature. The main reason for this is that the wet field is consuming the heat in order to dry the ground. The process of evaporation requires the use of some of this heat, keeping the surface cooler. However, once the field dries, then the temperature is likely to be the same in both fields.
The tundra and subarctic zones in Russia and the Near Abroad are permanently frozen to a depth of three meters. What is this permanently frozen layer called?
Answer:
PERMAFROST LAYER
Explanation:
Permafrost layer is usually defined as the thick layer of soil that is mixed with the broken rock fragments and other sediments, and are covered by ice throughout the year. These are mostly found in the higher latitudinal region, where the thickness of these layers ranges from a few meters to tens and hundreds of meters. The melting of these layers in these regions leads to an increase in the sea level.
For example, the permafrost layers of tundra and subarctic zones in Russia and its nearby areas, which have a thickness of about three meters.
Answer:
Permafrost
Explanation:
Assume that our Moon is hit by 25 million tiny meteorites every day. On average, it takes about 20 such impacts to obliterate a footprint left by an Apollo astronaut on the surface of the Moon. About how long would you estimate that it would take to erase evidence of a single footprint
Answer:
1.1 year for any small rock.
Explanation:
As the moon is frequently hit by the asteroid that directly impacts the surface and creates creators. As per the question if it takes about 20 of such impacts to remove the footprints lt by the apollo moon lander. Then it should take about one year as the moon has no atmosphere and is exposed to the solar winds.What type of weather front would be responsible for the following weather forecast: "Increasing high
cloudiness and cold this morning. Clouds increasing and lowering this afternoon with a chance of snow or rain
tonight. Precipitation ending tomorrow morning. Turning much warmer. Winds light easterly today becoming
southeasterly tonight and southwesterly tomorrow."
a. cold front
b. warm front
c. stationary front
d. occluded front
e. dryline
Answer:
a. cold front
Explanation:
Increase of the high cloudiness and cold morning and that leads to the increase of the lowing of the afternoon temperature and with a chance to snow or rain tonight and the occurrence of the rainfall and warming of the mornings and the blowing of the light easterly towards the southerly tonight and south-westerlies tomorrow.The weather forecast described aligns with the characteristics of a warm front, marked by increasing cloudiness, light but prolonged precipitation, and a gradual warming trend accompanied by shifts in wind direction.
Explanation:The forecast indicating increasing high cloudiness and cold in the morning, with clouds increasing and lowering in the afternoon followed by a chance of snow or rain, points towards the characteristics of a warm front. Additionally, the prediction of precipitation ending by tomorrow morning and a turn towards warmer weather, along with wind direction shifting from easterly to southeasterly then southwesterly, align with the typical behavior of a warm front. A warm front is responsible for bringing light but prolonged precipitation, a steady increase in temperature as it passes, and a gradual change in wind direction, all of which matches the forecast description perfectly.
Pressure drops.
Cumulus clouds develop.Intense precipitation occurs.Wind shifts from southerly/southwesterly to west/northwest.Temperatures decrease.Cloud cover dissipates after passage.Warm Front Weather:Clouds change from cirrus to nimbostratus.
Pressure decreases then increases.Nimbostratus clouds bring long-duration, low-intensity precipitation.Wind shifts from easterly to southerly.Temperatures rise after passage.
what is the area of the shaded sector
Answer:
Area of the sector is 558.22ft².
Explanation:
A= N/360(πr²)
where;
N=160°
π=3.14
r=20
A= 160/360(3.14(20)²)
A= 160/360(3.14(400))
A= 160/360(1256)
A=558.22ft.
Recall that area is measured in square units. And the unit of the radius is ft. Therefore our final answer becomes 558.22ft².
Also note that a sector is the part of a circle enclosed by two radii of a circle and their intercepted arc. It iseasily noted to be the pie-shaped part of a circle.
Answer:558.22f^2
Explanation:
did a test
Earth's main energy inputs are
(A) near infrared and far infrared (i.e., longwave radiation).
(B) ultraviolet, visible, and near infrared radiation.
(C) longwave radiation and ultraviolet light.
(D) gamma rays, X-rays, and ultraviolet radiation.
Answer:
Earth's main energy inputs are longer radiation and ultraviolet light.
Explanation:
Earth's main source of energy is solar energy which is obtained from sun.
Sun light that is emitted from sun broken down into 3 major components-visible light with shorter wavelength, Ultra violet light which also contain shorter wave length that is 380 nm and infrared light with longer radiation that is 700 nm.
But sun emits 44% of its light as shorter wave length which is also called as visible wave length and 7% contain ultra violet light
Answer: ultraviolet, visible, and near infrared radiation.
Explanation: The main source of energy input of the earth is the SUN.
Energy from the sun is essential for many processes on Earth including warming of the surface, evaporation, photosynthesis and atmospheric circulation.
Though the sun emits all of the different kinds of electromagnetic radiation, 99% of its rays are in the form of VISIBLE LIGHT, ULTRAVIOLET RAYS, and INFRARED RAYS.
Storms that form in or travel to the Caribbean Sea or Gulf of Mexico are virtually certain to impact land areas. There were multiple examples of these tracks in 2018. ________ is one particular example.
Answer:
Hurricane Irma
Explanation:
Storms that form in or travel to the Caribbean Sea or Gulf of Mexico are virtually certain to impact land areas. There were multiple examples of these tracks in 2018. Hurricane Irma is one particular example.
Storms that form in the Caribbean or the Gulf of Mexico have a high chance of impacting the land. Examples include Hurricane Katrina in 2005 and Hurricane Irene in 2011. These storms and changes in global weather patterns indicate that hurricanes are increasing in severity and frequency.
Explanation:Storms that form in or travel to the Caribbean Sea or Gulf of Mexico are virtually certain to impact land areas. There were multiple examples of these tracks in 2018. One particular example of such a storm is Hurricane Katrina, which struck the Gulf Coast in 2005. The hurricane caused considerable devastation and was a major natural disaster for the United States.
Another example is Hurricane Irene, which hit New York City in 2011. A satellite image shows the immense size of the phenomenon shortly before the storm made landfall. This storm and countless others like it are one demonstration of how Earth's titled axis of rotation, moderately rapid rotation, and oceans of liquid water can combine to produce violent weather.
Since the 1980s, storms have increased in frequency, intensity, and duration, as evidenced by the exceptionally active 2020 hurricane season. All types of weather are becoming more extreme due to changes in precipitation patterns and increasing carbon dioxide levels in the oceans. These phenomena are, in part, accountable for longer droughts, increased flooding, and more acidic oceans.
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At what time doe the Sun set?
Move the time back and forth one whole day, in one-hour increments, to determine the following: (You can turn off the atmosphere to help read the Sun's data in the upper left of the screen.)
What is the lowest Altitude of the Sun during this 24-hour period?
Answer:
Right around 7-9 PM.
Explanation:
It actually all depends on the time zone, and what season you are in. If it is summer, the sun should be setting right around 7-9 PM. If it is winter, then I belive the sun sets a little earlier than that.
The annual march of the seasons and the passage of the subsolar point between the Tropics of Cancer and Capricorn affect these stations. Can you detect from your temperature graphs these seasonal effects
Answer:
Subsolar point is point were the sun is believed to be directly over head and the rays of the sun strike at the perpendicular the surface.
Explanation:
The annual season is those that are divided into the summer, winter and the autumn and spring with the axial tilt of the sun and they are represented by the summer as starting from the 28th Feb and the winter in the 1st December with the spring on the 1st March and the autumn on the 31st August. And the spring begins when the daily annual range of the temperatures rises above the 0 degrees and the summer when its plus 10 degrees. And thus areas the low and mid-latitudes, high latitudes as tropics, torrid and the frigid areas have been demarcated with the reference to the tropics of cancer and the Capricorn.A Pacific Northwest Geologic Mystery Lab Purpose and learning objectives 1. Report, describe, and interpret your observations of several features found in the Pacific NW. 2. Formulate a hypothesis explaining how several landform features relate to each other and explain what took place to create them (Your story). 3. Use the scientific method to structure your exploration and explanations.
The geology of the Northwest is extremely interesting. This region has features thaat cannot be seen anywhere else in the country. For example, this region is part of the Ring of Fire. This feature is a consequence of the subduction of the Pacific and Farallon Plates under the North American Plate. This is the main reason why the area has such scenic features, including volcanoes, earthquakes and landslides.
Answer:
Refer below for the explanation.
Explanation:
The topography of the Northwest is very fascinating. This locale has highlights that can't be seen anyplace else in the nation. For instance, this local is a piece of the Ring of Fire. This is the primary motivation behind why the region has such picturesque highlights, including volcanoes, seismic tremors and avalanches.
This component is a result of the subduction of the Pacific and Farallon Plates under the North American Plate.
Which statement is true based on the exchange rate table below?
Japan YEN
101.96
China YUAN 6.2471
Mexico PESO 12.8575
Canada DOLLAR 1.0853
One hundred Japanese yen is able to buy 7.93 Mexican pesos.
The exchange rate between the Chinese yuan and the U.S. dollar is 1.0853.
One U.S. dollar is able to buy 1.0853 Canadian dollars.
The answer is best gotten using dimensional analysis depending on the choices.
(a) 100 Japanese Yen (12.8575 Mexican Peso/101.96 Japan Yen) = 12.61 Mexican Peso (FALSE)
(b) 1 Chinese Yuan ( 1 U.S. dollar / 6.2471 Chinese Yuan) = 0.16 U.S dollar (FALSE)
(c) 1 U.S dollar (1.0853 Canadian dollar/ 1 U.S. dollar ) = 1.0853 Canadian dollar (TRUE)
The answer therefore is C. As this is the only option that is valid with the the premises.
The relative humidity (RH) of surface air (2 m height) tends to decrease from morning into early afternoon, especially when the sun is shining and the weather is quiet and stable. As evening approaches, RH usually rises again. Explain the physical basis for this behavior (not discussed in text).
Answer:
The Relative Humidity tend to decrease from morning to afternoon and as evening approaches increases and this as a result of the relationship between RH and increase in temperature
Explanation:
The relative humidity is the amount of water vapor the air is holding right now as a percentage of what it would be holding if it were saturated. If you increase the temperature, however, the amount of water vapor the air can hold increases, so the relative humidity decreases and vice versa for decrease in Temperature. This explains the reason for high RH in the morning decreasing into the afternoon and rising again in the evening.
Which of the following statements are true?
Check all that apply:
O The north poles of two bar magnets will attract each other.
O Earth's geographic south pole is also a magnetic south pole.
O Earth's geographic north pole is actually a magnetic south pole.
O The north pole of a bar magnet will attract the south pole of another bar magnet.
O The south poles of two bar magnets will repel each other.
O Scientists have evidence that single isolated magnetic poles, called magnetic monopoles, exist.
Answer:
Options (3), (4) and (5)
Explanation:
The geographic north and south poles refers to the two geographical location/points, where the earth's axis spins. And the magnetic north and south poles refers to the direction towards which a compass needle points.
The geographic north pole and the magnetic south pole of earth is the same, and two bar magnets where one having the north pole and the other having the south pole can attract each other. Similar poles of two bar magnets cannot attract one another, whereas they repel.
Thus, the correct answers are options (3), (4) and (5).
Answer:
Earth's geographic north pole is actually a magnetic south pole.The south poles of two bar magnets will repel each other.The north pole of a bar magnet will attract the south pole of another bar magnet.Explanation:
The earth's geographical north pole is also called as the north pole or the terrestrial geographical north pole and is defined as the point of the northern hemisphere and is the magnetic south pole of the earth. The earth magnetic poles have equal are properties and thus are close relation and opposite to each and every property.
Do you think mass tourism is sustainable in the long-term? Why/why not? Should local governments be available to keep tourists out? For example, if your dream was to visit the redwood forests in California and you were told you could not visit, how would you feel about that? To whom do natural resource mass tourism sites actually belong?
1. The mass tourism can and can not be sustainable on the long term, depending on what kind of tourist site it is.
Explanation:
The mass tourism is sustainable on the long run for some places, and it is not sustainable for other place. The places where it is is sustainable are mostly the ones that are man-made and are well regulated and protected. Such tourist attractions are the Colosseum in Rome, Eiffel Tower in Paris, Big Ben in London etc.
On the other hand, the natural sites that are tourist attractions can not be sustainable, in general, on the long term. The reason for that is that if there are constantly lot of tourists on those places, they get disturbed, damaged, degraded, and over time may easily disappear, as those places are much harder to be protected directly and stop damaging them.
2. The local governments should be able to forbid tourist activities, especially when taken in consideration that the natural resources mass tourism sites belong to the government.
Explanation:
The natural resources tourism sites belong to the government, and in collaboration with the local authorities they control them together. Whenever the local government feels like the tourist place is in some kind of danger to be damaged, it should be , and it is able to stop any tourist activities there, or at least to restrict them and minimize them.
In the example of a tourist wanting to visit the redwood forest in California and not being allowed to, it does seem cruel. On the other hand, the tourist as disappointed he/she may be, should realize that it is done for the good of the forest, to be protected and continue to exist in the future.
Final answer:
While mass tourism can generate significant economic benefits, sustainability is a concern due to potential environmental and cultural degradation. Ecotourism and geo-tourism aim to balance tourism with conservation, and local governments may need to regulate visitor numbers to protect natural resources.
Explanation:
Mass tourism, while potentially a significant source of economic income, poses sustainability challenges for the long-term due to environmental and cultural impacts. Managed effectively, tourism initiatives such as ecotourism and geo-tourism aim to mitigate these impacts by promoting environmental protection and community involvement. National parks like Yosemite have shown that with careful management, tourism can coexist with conservation. However, the high traffic in other tourist destinations like Machu Picchu raises concerns about the degradation of these sites. Furthermore, tourism can fail to benefit local economies when profits are repatriated due to 'multiplier leakage,' and poorly managed tourism can have severe cultural and ecological consequences. Thus, local governments might find it necessary to impose restrictions to protect their natural resources, which could include limiting tourist numbers. The idea of stewardship is central to this discussion, asserting that natural resources should be preserved not just for the immediate economic benefit, but for their intrinsic value and the enjoyment of future generations.
Pyroclastic material is ejected from a volcano during an explosive eruption. These fragments are defined by their size, which ranges from less than 2 mm to greater than 64 mm.
Ashis less than 2 mm in diameter, with an appearance of dust or sand.
Lapilli, or cinders, range from 2 mm to 64 mm in diameter. These pyroclasts are commonly pea to walnut sized.Blocksand bombsrepresent the largest fragments, which are greater than 64 mm.
Blocksare erupted as hardened lava with a mostly angular shape, while bombsaresemi-molten and develop a streamlined-shape while flying through the air.HelpReset
Answer:
As this less than 2 mm in diameter, with an appearance of dust or sand. These pyroclasts are commonly pea to walnut sized.Lapilli, or cinders, range from 2 mm to 64 mm in diameter. Blocks And bombs represent the largest fragments, which are greater than 64 mm. Blocks are erupted as hardened lava with a mostly angular shape, while bombs semi-molten and develop a streamlined-shape while flying through the air.Explanation:
A pyroclastic material is a particle ranges for the 2 to 64 mm in diameters and they can range of the volcanic bombs to the ash and the lavas.Like Lapilli or the cinders, they have a diameter of about 64 mm. They extend to miles form the volcano when they blast as blocks and can devastate lands, life, and property within there paths.Pyroclastic material ejected from volcanoes during explosive eruptions is categorized by size. Ash is less than 2 mm, lapilli are 2-64 mm, and blocks and bombs are greater than 64 mm, with blocks being angular and bombs smoother due to being partially molten.
During an explosive volcanic eruption, various sizes of pyroclastic material are ejected, each with different names based on their size. The smallest particles, known as volcanic ash, are less than 2 mm in diameter and can resemble dust or sand. These fine particles can travel long distances and carry potential health hazards, like causing respiratory issues.
Slightly larger fragments are called lapilli or cinders, which have diameters ranging from 2 mm to 64 mm, roughly the size of peas to walnuts. These pyroclasts tend to fall closer to the volcano. The largest pyroclastic materials are blocks and bombs which are greater than 64 mm. Blocks are already hardened when ejected, taking on a mostly angular shape, whereas bombs are semi-molten during ejection and can develop a streamlined shape as they fly through the air.
This volcano is composed of different types of lava flows and ash deposits, has steep slopes on its sides, and is typically several thousands of feet tall. What is the name of this volcano?
Answer:
Stratovolcanoes
Explanation:
Stratovolcanoes are usually defined as those volcanoes that are characterized by the presence of steep slopes, having a height of about thousands of feet and comprised of alternate layers of ash deposited particles and lava flows. These are very explosive and when it comes in contact with water, it erupts violently. These are also known as composite volcanoes. It produces pyroclastic materials, along with volcanic blocks and ashes with a large amount of toxic gases.
With the addition of water, the minerals in granite rocks chemically weather into other minerals, known as products. Test your knowledge of the by-product of each mineral as a result of chemical weathering by labeling the minerals below with their respective products.
1. Feldspar
Clay, no chemical change, or limonite?
2. Quartz
Clay, no chemical change, or limonite?
3.Olivine
Clay, no chemical change, or limonite?
Answer:
Feldspar-clay
Quartz- No chemical change
Olivine- Limonite
Explanation:
When chemically weathered, some of the original minerals of granite change into different minerals.
Feldspar, for example, tends to hydrate and transform into a clay mineral.
Iron-rich minerals, like olivine, turn into limonite by chemical weathering. Quartz is considerably resistant to chemical weathering, so it´s the least susceptible to the chemical change.
Which of the following sites has volcanism related to a hot spot or divergent margin? A is on an island arc, B is in the Andes, C is near Hawaii, D is along a mid-ocean ridge.
Question Options:
A. A and B
B. B and C
C. C and D
D. A and C
E. B and D
Answer: C and D. C is near Hawaii, D is along a mid-ocean ridge
Hotspot in geology is the surface manifestation of a plume that rises from deep in the celestial body's mantle.
Divergent margins also known as rift zones, shield volcanoes tend to form as two oceanic plates pull slowly apart and magma effuses upward through the gap.
The sites based on history that has volcanism related to a hot spot or divergent margin are Hawaii and the mid-ocean ridge. Hawaiian volcanoes within the Pacific Plate are caused by anomalous volcanism.
The correct answer is option (c), option (d) because Volcanism related to hot spots is typically found in locations such as Hawaii. Hot spots are areas on the Earth's surface that have a high amount of heat flowing towards the surface from the mantle.
This often leads to volcanic activity that forms shield volcanoes, which is the case with the Hawaiian Islands. As the Pacific Plate moves over the stationary hot spot, a chain of volcanic islands is formed.
On the other hand, volcanism associated with divergent margins occurs at mid-ocean ridges. At these ridges, tectonic plates are moving away from each other, and new oceanic crust is formed through the eruption of basaltic lava. This process is part of seafloor spreading, which is a key component of plate tectonics.
In contrast, site A, located on an island arc, is associated with subduction zones where one tectonic plate is pushed beneath another, leading to the formation of volcanic arcs.
Site B, in the Andes, is also related to subduction, where the Nazca Plate is subducting beneath the South American Plate, resulting in the Andean volcanic belt.
During the winter cP air masses may stall over the Gulf of Mexico. These air masses are modified by the warm waters of the Gulf over several days and are drawn back to the north. These air masses may be reclassified as mT because of the increase in moisture and warmth of the air mass. These are called ______.
Answer: These are called WARM FRONT.
Explanation: In meteorology, warm front is known as a trailing edge of a retreating mass of cold air. It involves a warm air mass replacing a cold air mass. They are typically located on the equator-facing edge of an isotherm gradient.
Clouds ahead of the warm front are mostly stratiform, and rainfall gradually increases as the front approaches.
Can someone help me answer these questions?
Foreign environmental forces often operate differently than domestic environmental forces because: Group of answer choices A) environmental forces are controllable. B) environmental forces, their value differs. C) environmental forces changes are easy to assess.
Answer:
A) environmental forces are controllable
Explanation:
The foreign environmental forces are different from the domestic forces as they operate differently and these are externalities that are uncontrollable and differ form the home or the domestic environment. Force like those of the political, technological and socio-cultural forces and thus are stronger in influence than the internal or the domestic environments of the home country.