Answer:
A spiral galaxy.
Explanation:
This is a class of galaxy described in 1936 by the American astronomer Edwin Hubble.
The central bulge is characteristic of this type of galaxies, where the major concentration of stars resides. The "arms" are very bright and are full of young, blue stars.
The pinwheel shape is why we can easily recognize them from the earth. Astronomers think that more than 60% of the galaxies in the universe are spiral-like.
During burial, most of the hydrogen and oxygen are expelled from peat to concentrate carbon and form coal.
Answer:
True.
Explanation:
As peat is an accumulation of the partly decomposed vegetation and is found near bogs and peatlands and its considers to be the most efficient carbon system of the planet and thus they are harvested as important for fuel in the world. If hydrogen and oxygen are expelled from peat 106 gm of carbon dioxide is released. and can be sued to form fossil fuel. As it has high carbon content it can be concentrated to form coal as it becomes lighter and increasing sedimentation for which it must be buried 4 to 10 km deep in the earth.PLLLLLLLZ HELP Which best summarizes the change in number and size of microcontinents during the Proterozoic?
the number of microcontinents increased and the size increased
the number of microcontinents increased and the size decreased
the number of microcontinents decreased and the size increased
the number of microcontinents decreased and the size decreased
Answer:
The number of microcontinents decreased and the size increased
Explanation:
The Proterozoic Era was between 570 million years and 2500 million years ago. It comprises of the Late, Middle and Early Era.
Small Proterozoic continents are called microcontinents. These microcontinents collided and thus their numbers decreased but their resultant collision produced high altitude massive mountain ranges of increased size. This convergence to form a continent of increase size was active between 1.5 and 10 billion years ago. What was formed by this collision was called the continent of Laurentia, which covered about 70% of the earth at that time.
Imagine you are an oceanographer mapping the sea surface temperature variations throughout the Atlantic Ocean for the Northern Hemisphere. What phenomenon best explains the difference in sea surface temperatures of two coastal cities located at the same latitude located on opposite sides of the Atlantic Ocean?
Answer: GULF STREAM
Explanation: Gulf stream is the warm ocean current from the Gulf of Mexico, that flows northeastwards along the coast of North America to the Grand Banks where it breaks eastwards towards the Atlantic Ocean and helps to maintain warm temperatures along the western coasts of the British Isles.
The difference in sea surface temperatures of two coastal cities located at the same latitude on opposite sides of the Atlantic Ocean is best explained by the influence of ocean currents.
Explanation:The phenomenon that best explains the difference in sea surface temperatures of two coastal cities located at the same latitude on opposite sides of the Atlantic Ocean is the influence of ocean currents. Ocean currents can transport water from one temperature zone to another, resulting in different sea surface temperatures along the coastlines. For example, the warm Gulf Stream current in the Atlantic Ocean affects the sea surface temperatures along the eastern coast of North America, making them warmer compared to the western coast of Europe.
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Groundwater in constricted fractures is heated past its surface boiling temperature by surrounding hot rocks. The superhot liquid expands in volume, reducing its confining pressure, and flashing it into steam.
Which geologic feature matches this description?
A. a geyser
B. a hot spring
C. a mud pot
D. an artesian spring
Answer:
A geyser.
Explanation:
Groundwater sometimes may encounter a magma chamber or a great heat source. As the water gets hot, it reaches its boiling point, however, water cannot evaporate because cold water in the surface, creates a pressure that constricts water, and prevent it from boiling.
Water continues to increase its temperature until it gets superheated and blasts in a quick expansion of volume where the water-vapor its expelled from the vent with great violence.
The stream gradient of most rivers ________. A. is greater near the source than near the mouth B. is greater near the mouth than near the source C. does not change significantly as a river flows downstream D. is greater for a meandering stream than for any other type
Answer: A)is greater near the source than near the mouth
Explanation: A stream is a small river; a large creek; a body of moving water confined by banks.
Gradient is an area of ground that tends evenly upward or downward.
A stream gradient can be defined as an area of water that that tends evenly upward or downward of the stream and it is measured by the difference in elevation between two points on a stream divided by the distance between the two points that the water actually flows.
The gradient influences the speed in respect to time of the stream. The steeper the gradient, the higher will be the speed of the of the flow.
Answer:
A
Explanation:K12
and did the test
A. Bering Glacier B. Hubbard Glacier C. Kilimanjaro Glacier D. Blue Glacier E. Lambert Glacier F. Columbia Glacier G. Kutiah Glacier H. Gangotri Glacier 1. ___ Which one of these glaciers is part of a continental ice sheet? 2. ___ Located near the equator but at a high enough altitude to form a glacier 3. A. Longest glacier in North America at over 100 miles long 4. ___ Which glacier holds the record for the fastest surging at 112 meters per day? 5. ___ This glacier is unusual because it is advancing instead of retreating. 6. ___ This glacier in India is the source of the Ganges River providing freshwater and electricity. 7. ___ One of the most studied glaciers in the world due to its lower elevation and abundant snowfall 8. ___ A tidewater glacier that is rapidly retreating
Answer:
1. Blue Glacier 2. Kilimanjaro Glacier 3. Bering Glacier 4. Kutiah Glacier 5. Hubbard Glacier 6. Gangotri Glacier 7. Lambert Glacier 8. Columbia Glacier
Explanation:
Bering Glacier is the Longest glacier in North America at over 100 miles long. Kutiah glacier holds the record for the fastest surging at 112 meters per day. Gangotri Glacier in India is the source of the Ganges River providing freshwater and electricity. The most studied glaciers in the worldis in Antartica and is Lambert Glacier. Columbia Glacier is a "tidewater" glacier that is decreasing rapidly. Hubbard glacier is unusual because it is advancing. Kilimanjaro Glacier is located near the equator. Blue Glacier is part of a "continental ice sheet".
The glacier that is part of a continental ice sheet is Blue Glacier.
Kilimanjaro Glacier is located near the equator but at a high enough altitude to form a glacier. The longest glacier in North America at over 100 miles long is Bering Glacier. The glacier that holds the record for the fastest surging at 112 meters per day is Kutiah Glacier. Hubbard Glacier is unusual because it is advancing instead of retreating. Gangotri glacier in India is the source of the Ganges River providing freshwater and electricity.One of the most studied glaciers in the world due to its lower elevation and abundant snowfall is Lambert Glacier. A tidewater glacier that is rapidly retreating is Columbia Glacier.Learn more about glacier on:
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PLLLLZ HELP What is true about the focus?
It is the point where the most surface damage will occur.
It is the point where the surface waves originate and spread out.
It is the point where the waves are attracted.
It is the point of failure where the waves originate.
Answer:
It is the point where the surface waves originate and spread out.
Choose the FALSE statement.
Choose one:
A. When the rate of ablation equals the rate of accumulation, the glacier retreats.
B. During glacial advance, the toe moves downslope for mountain glaciers and outward for continental glaciers.
C. During glacial advance, the rate of ice accumulation exceeds the rate of ablation.
D. The boundary between the zone of accumulation and the zone of ablation is called the equilibrium line.
The false statement is 'A'. A glacier remains stable, neither advancing nor retreating, when the rate of ablation equals the rate of accumulation. Glacier retreats occur when ablation surpasses accumulation.
Explanation:The false statement in these options is A. When the rate of ablation equals the rate of accumulation, the glacier retreats. In reality, when the rate of ablation (the process by which ice and snow waste away) equals the rate of accumulation (the process of amassing ice and snow), the glacier remains stable. It's neither advancing nor retreating. This state is referred to as equilibrium.Glacier retreat occurs when the rate of ablation exceeds the rate of accumulation.
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The false statement is A. When the rate of ablation equals the rate of accumulation, the glacier retreats. In reality, this represents a state of equilibrium for the glacier, not retreat. The other statements are correct.
Explanation:The FALSE statement in the given choices is A. When the rate of ablation equals the rate of accumulation, the glacier retreats. This statement is not true because when the rate of ablation (melting and loss of ice) equals the rate of accumulation (gain of ice through snowfall), the glacier is actually said to be in equilibrium, not retreat. Glacier retreat happens when the rate of ablation exceeds the rate of accumulation.
The rest of the statements: B. During glacial advance, the toe moves downslope for mountain glaciers and outward for continental glaciers, C. During glacial advance, the rate of ice accumulation exceeds the rate of ablation, and D. The boundary between the zone of accumulation and the zone of ablation is called the equilibrium line, are correctly expressed concepts in glaciology.
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How much does the air weigh within a column that is 1 square inch in area that extends from sea level all the way to the top of the atmosphere? Select one:
a. 0 lbs
b. 2.4 lbs
c. 14.7 lbs
d. 29.9 lbs
e. 1013.25 lbs
Answer:
option (c) 14.7 lbs
Explanation:
Data provided in the question:
Area of the column = 1 square inch
Now,
we know Air pressure at the ground surface level from the atmosphere
= 14.7 Psi
also, it can be represented as
14.7 Psi = 14.7 pounds per square inch
Therefore,
Weight of the air weigh within a column that is 1 square inch in area
= Air pressure × Area
= 14.7 pounds per square inch × 1 square inch
= 14.7 pounds i.e 14.7 lbs
Hence,
The answer is option (c) 14.7 lbs
Identify the true statement.
Choose one:
A. Aerosols scatter only light waves with short wavelengths.
B. The sky looks blue because atmospheric gas molecules are scattering blue light.
C. Clouds are white because they absorb the entire spectrum of visible-light colors.
D. Blue light has a longer wavelength than red light.
Answer:
B. The sky looks blue because atmospheric gas molecules are scattering blue light.
Explanation:
As the blue light is scattered in all directions due to the presence of the tiny molecules of air in earth atmosphere and due to its shorter waves length this light gets scattered more to far distances and thus we see most of the time blue light in the sky.The correct statement is B. The sky looks blue because atmospheric gas molecules are scattering blue light.
To understand why option B is the correct answer, let's consider the principles of light scattering:
- Aerosols, which are tiny particles or droplets in the atmosphere, can scatter light of all visible wavelengths. However, they tend to scatter shorter wavelengths more efficiently. This is due to Rayleigh scattering, which states that the intensity of scattered light is inversely proportional to the fourth power of the wavelength. Therefore, statement A is incorrect because aerosols can scatter light waves with a range of wavelengths, not just short ones.
- The sky appears blue due to Rayleigh scattering. Sunlight is composed of a spectrum of colors, each with a different wavelength. As sunlight passes through Earth's atmosphere, the shorter wavelengths of light (blue and violet) are scattered in all directions by the gases and particles in the air. Because blue light is scattered more than other colors, it is what we see when we look at the sky. Although violet light is scattered even more than blue, our eyes are more sensitive to blue light, and the upper atmosphere absorbs violet light, which is why the sky appears blue rather than violet.
- Clouds are white because they contain water droplets and ice crystals that are much larger than the molecules in the air. These larger particles scatter all wavelengths of light almost equally, which results in a mixture of all colors that appears white to our eyes. Therefore, statement C is incorrect because clouds do not absorb the entire spectrum of visible-light colors; they scatter it.
- Blue light has a shorter wavelength than red light. The visible spectrum of light ranges from red, which has the longest wavelength, to violet, which has the shortest wavelength. Blue light falls in between, but it has a shorter wavelength than red light. Therefore, statement D is incorrect.
In summary, the correct statement is B, which accurately describes why the sky appears blue. The scattering of blue light by atmospheric gas molecules is responsible for the blue color of the sky.
What are the main advantages of studying objects and many different wavelengths of radiation?
Answer:
By comparing the features visible in each, multi-wavelength observations can complement each other, greatly extending our perceptions of the universe around us.
Explanation:
what are the geographical characteristics of the region where the yupik tribe lived
Answer:
They live in arctic region like that of the Diomede Islands of the Bering Seas and thus polar areas.
Explanation:
The Yukik are a tribal people that belong to the race of the Eskimos and are the inhabitants of the polar regions of the earth and mostly occurs in the arctic circle of southwestern Alaska and the Canadian province and even in Russia and are found along the Bering sea and the Yukon delta and they depend on fish as the primary food sources and earth meat of the deer and the whales.31. Ship Rock in New Mexico is an example of a ___________.
a. laccolith
b. volcanic neck
Answer:
Hello, Ship Rock is an example of a Volcanic Neck
Explanation:
A volcanic neck is formed by erosion and Ship Rock is a result of this process through many years.
Answer:
b. volcanic neck
Explanation:
A volcanic neck, also known as volcanic plug, is created when magma hardens inside a volcanic vent. The Ship Rock, is a volcanic neck formed of fractured volcanic rock an thin veins of lava.
I hope you find this infromation useful and interesting! Good luck!
Conversion of natural ecosystems to agriculture ecosystems can lead to less carbon stored in soil and large plants such as trees. True or false?
Answer:
True
Explanation:
An agricultural ecosystem is different from that of the natural ecosystem and is thus an human-induced system and is thus there are changes in the stored carbon that are found in the system and the soil erosion and he terrestrial sedimentation and other process that works on the conversion of this ecosystem and thereby reduce the carbon amounts that are stored in the soil and the associated impacts of this system are the increase in the pollutant contents of the soil.Why did the policy of treating the great plains as a huge reservation change?
Answer:
Policy of treating Great Plains as a huge reservation changes because white settlers began wanting land on the plains.
Explanation:
Settlers are the one who migrate from the other area to that new one. Jamestown, Virginia was the place where first colony was established and many people settle there as they were persecuted by various regions in 1607. In '1770', more than '2 million' people settled to 13 northern American colonies. Because of more people settling there, reservation policy changed.The policy of treating the Great Plains as a huge reservation changed due to increased demand for land by settlers, leading to constant displacement of Native Americans. Policy changes, like the Dawes Act of 1887, further encouraged assimilation of Native Americans into American society and the transition from collective reservation system to individual land ownership.
Explanation:The policy of treating the Great Plains as a huge reservation changed mainly due to settlers' increasing demands for land for farming, mining, and ranching. As the pace and number of western settlers increased, territories initially allocated to the native tribes under the Treaty of Fort Laramie became prime locations for these activities. The reserved lands, often poor and unsuitable for traditional occupations of most western tribes, resulted in failed agricultural attempts and made tribes heavily reliant on the Bureau of Indian Affairs for support.
As tribal lands became increasingly desirable for white settlement, Native Americans faced waves of displacements. The U.S. government abandoned treaties and empowered local or state militia units to forcibly remove tribes from their lands. Meanwhile, an Americanization policy was adopted, aimed at assimilating Native Americans into American society. This included transitioning them from the collective reservation system to individual land ownership, promoting Christian worship and providing education for children.
The Dawes Act of 1887 further facilitated this process by allowing the government to dissect reservation land into individual allotments for natives and white settlers alike, diminishing the strength of native tribes as collective entities. This shift in policy marked a significant change in the U.S. government's approach towards Native American tribes, resulting in their increased assimilation into American society and a profound transformation of the Native American way of life.
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All of the following are lithogenous sediments except:
A. glacial deposits.
B. illite clays.
C. beach sand.
D. volcanogenic particles.
E. Vdiatom ooze.
Answer:
Option-(E): It is the best option to choose from.
Lithogenous sediments: "Those particles or sediments which are formed by the weathering process of rocks, and mostly from the events occurring in the oceanic volcano."
Vdiatom ooze: It is not a lithogenous sediment, as it is a bio-genic pelagic sediment found deep down in the ocean bed.
Explanation:
As Examples of lithogenous sediment includes;
volcanogenic sediments, glacial deposits,illite clays,And beach sands.The lithogenous sediment types listed include glacial deposits, illite clays, beach sand, and volcanogenic particles. Diatom ooze is the exception as it is a biogenous sediment formed from organic material. Thus, the correct answer is E. diatom ooze.
All of the following are lithogenous sediments except E. diatom ooze. Lithogenous sediments, also known as terrigenous sediments, are primarily composed of small fragments of pre-existing rocks that have made their way into the ocean. These can include a range of particle sizes, such as the microscopic clays in illite clays, large boulders in glacial deposits, or the sands found in beach sand. Lithogenous sediments are typically characterized by materials such as quartz, feldspar, and iron oxides, and are derived from the weathering of terrestrial rocks.
Diatom ooze, however, is not lithogenous but rather biogenous sediment. It is composed predominantly of the silica-based shells of microscopic marine algae known as diatoms. As such, it is formed from the accumulation of organic material, rather than from the physical and chemical weathering of rocks and minerals. Therefore, the correct answer to the question would be diatom ooze, as it does not meet the criteria of being a lithogenous sediment.
The maps above show New Zealand's place in the world from two different perspectives. Which statement explains why people in New Zealand might prefer Map A over Map B?
Answer:
People prefer to observe their country from a central point of view.
Explanation:
All maps are designed to portray certain information and often have some kind of bias based on the creator of the map. In the case of many countries in the Southern Hemisphere, maps are often preferred to be oriented in a different way than in the Northern Hemisphere.
This difference is a result of the placement of these countries on the globe. Were the map to be centered on the Prime Meridian and the North Hemisphere countries, most of the states south of the Equator would barely be visible.
About 2.2 billion years ago, a significant amount of oxygen appeared in the atmosphere. How does this relate to life on Earth during this time and after?
Answer:
Cyno-bacteria used sun, water and carbon dioxide to produce oxygen
Explanation:
A significant amount of oxygen contributed to the formation of the ozone and protected life form the UV rays. Photosynthesis was successfully and plants were able to convert the light energy from the sun and used for the primary producers an oxygen was a significant by-product.A population density map of the world shows that the distribution of people is most obviously affected by
A) environmental factors such as natural resources, climate, water availability, topography.B) preferences for places with tropical landscapes.C) cultural factors such as language, cuisine and religion.D) political factors, types of government, and laws.E) economic factors such as development and trade history.
Answer:
Option (A)
Explanation:
A population density map is used to define as a map that shows the presence of a number of the population existing in any particular area. It directly reflects the dispersion of people that are mainly affected by environmental factors. This includes the variable amount of natural resources present in that area, the type of climate prevailing, the topography of the area and the availability of water resources.
The places which are rich in resources and low lying areas, with plenty of water resources and moderate type of climate are comprised of high-density population. On the other hand, the places which are highly elevated, lack of resources and extreme cold and hot climate are comprised of a lesser population.
Thus, the correct answer is option (A).
What is the only u.S. National park south of the equator?
Answer:
National Park of American Samoa
Explanation:
his park covers three islands, Tutuila, Ofu, and Ta'ū, which are home to protected coral reefs, rainforests, volcanic mountains, and white beaches. American Samoa is the only U.S. national park located part south of the equator.
Water waves are caused by wind, which is directly caused by the
the sun.
O
A. energy
O
B. matter
O
C. wind
O
D. conservation
SUBMIT
Answer:
A. Energy
Explanation:
Sun's energy is the core causative agent behind winds which in turn generate water waves. Hence, the correct answer is A. Energy.
Explanation:In the context of the question, the correct answer is A. Energy. The sun's energy is one of the primary driving forces behind the weather, which includes wind. This energy heats the earth's surface, causing air to warm up and rise, leading to differences in air pressure that create winds. These winds, in turn, generate water waves when they come into contact with the surface of a body of water like a lake or an ocean. Hence, without the sun's energy, there would be no wind, and without wind, there would be no water waves.
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the concept of activity space is useful for better understanding that each human
Answer:
The concept of activity space is useful for better understanding that each human has a territory with which he/she is most familiar.
Explanation:
Every human has a territory within which he/she moves and travels during his/her daily activities.
Yosemite National Park provides spectacular glaciated exposures of the Sierra Nevada batholith. The batholith is composed of many separate plutons, which intruded into the area as part of a Mesozoic-age sub-duction system. The problem 1 placemark flies you to the spectacular Half Dome in Yosemite National Park. Given that it is part of an intrusive batholith, what type of rock texture would you expect to see at Half Dome? a. fine-grainedb. coarse-grainedc. glassyd. fragmental
Answer:
(b) coarse-grained
Half Dome in Yosemite National Park, which is part of a Sierra Nevada batholith, is expected to have a coarse-grained rock texture due to the slow cooling of intrusive igneous rocks.
Explanation:Yosemite National Park's Half Dome is part of a Sierra Nevada batholith, indicating that it was formed from a large mass of intrusive igneous rock. Intrusive rocks, like those found in batholiths, cool slowly deep beneath the Earth's surface, which allows the crystals to grow larger. Crystals in intrusive igneous rocks are usually large enough to be seen with the unaided eye, giving these rocks a coarse-grained texture. Therefore, at Half Dome, you would expect to see a coarse-grained rock texture.
What does this sign mean?
a.Be careful to avoid getting stuck in wet weather
b.Be careful to avoid skidding in any weather
c.Be careful to avoid skidding in wet weather
Answer:
c. Be careful to avoid skidding in wet weather
Explanation:
This sign and symbols are given by the department of the transportation by the government of the united states and it represents a yellow background that is marked by the car that appears to be skidding on the water or wet surface and thus shows that care should be taken to protect the vehicles form getting skidded.The given sign most likely means "Be careful to avoid skidding in wet weather." Therefore, the correct option is C.
The given sign, which cautions vehicles against slipping in adverse conditions, was expressly made to alert drivers to the dangers that may arise from poor road conditions during rain or other adverse weather conditions .
It serves as a reminder to drivers to modify their driving habits and take necessary safety measures, such as reducing speed, maintaining a safe distance from other cars, and beingware of unexpected braking or acceleration that may cause skidding. Can be made. To reduce accidents and maintain a smooth and safe driving experience in such conditions, the sign encourages drivers to be alert and proactive while navigating wet road surfaces.
Therefore, the correct option is C.
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In which area would surface water most effectively infiltrate into the local groundwater system?
a. A stream in a steep-sided bedrock canyon in the mountains
b. Streams flowing in the numerous channels of an alluvial fan
c. A playa lake with a thick mud bottom
d. All of the above would promote infiltration
Answer:
Option B is correct.
Explanation:
Infiltration depends greatly on the features of the soil. If the soil has excessive clay or mud, water will not find a way into the groundwater system and will remain as surface water.
An alluvial fan is a perfect location for this since there will be little or no resistance to the flowing water. The streams are already a connection with the groundwater system, and falling water will flow directly to it.
Are there any exceptions to the rule that planets rotate with small axis tilts and in the same direction as they orbit the Sun?
(a) No
(b) Venus is the only exception.
(c) Venus and Uranus are exceptions.
Answer:
(B) Venus is the only exception.
Explanation:
China and Japan both have trade surpluses. What does that mean?
Answer:
B
Explanation:
When a country maintains a trade surplus with another country, the first country exports more to the second country. In the case of Japan and China, the United States buys more goods from the Asian countries than Japan and China buy from the North American state. The United States would have a surplus if it sold more goods to China and Japan than it purchases.
An example of an indicator species is the sea otter. Without sea otters, sea urchins would overgraze on kelp beds, dramatically changing the marine community. True or False.
Answer:
False
Explanation:
Sea urchin do not overgraze or change the kelp bed uttering the marine community.
In the mass burn technique, Select one:
a. water is heated and the steam drives a turbine to generate electricity.
b. huge quantities of waste are burned at low temperatures for a long period of time.
c. ash and particulates are vaporized into the atmosphere.
d. All of these are correct.
Answer:
d. All of these are correct.
Explanation:
Mass burn incinerators are big confinements where people use it to burn big amounts of trash. Once the trash is cleaned and separated (for recyclables), is transported to this machine which will burn it with high temperatures. Ash and particulates are vaporized into the atmosphere; and if anything remains then it is move to create different types of metals. While the machine is working, water is circulating through the walls of the machine and turbines to produce the energy necessary. If the quantity of the trash is bigger than expected, then they leave the trash in lower temperatures for a long period of time so it can burn down properly without overusing the machine.
Sediments with an extraterrestrial origin are called: a. cosmogenous. b. hydrogenous. c. biogenous. d. volcagenic. e. lithogenous.
Answer:
a. cosmogenous
Explanation:
These are those sediments that are characterized by the extraterrestrial sources and thus are an important part of the study of the varied life forms on earth and thus have deposits of other places of the outer wolds and are hence an important constituent of the matter that falls from above can be in the shell of an meteorite or a comet.