The evolution of photosynthetic life alters Earth's atmosphere as Hydrogen moves to the top of the atmosphere and most of it escaped into space.
What is the evolution of photosynthetic and Earth atmosphere?The molecules of gas generated after the process of photosynthesis process rapidly move out of the Earth's gravity and goes to space.
Therefore, Earth tends to hold its original atmosphere which is made up of hydrogen and helium.
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The evolution of photosynthetic life led to an increase in atmospheric oxygen, reduction in CO2 levels, and the formation of an ozone layer, which allowed for more complex life forms to evolve on Earth.
Explanation:The evolution of photosynthetic life forms, such as cyanobacteria, dramatically altered Earth's atmosphere. Initially, the atmosphere was anoxic, containing no molecular oxygen, and only anaerobic organisms could live. However, once photosynthesis began, these organisms released oxygen as a by-product. Over time, the accumulation of oxygen led to significant changes, including the development of an ozone layer that protects living organisms from harmful ultraviolet radiation, allowing for more diverse and complex life forms to evolve.
Furthermore, the process of photosynthesis involved the consumption of carbon dioxide, which reduced the atmospheric levels of CO2 and led to the deposition of carbon in marine sediments. This contrasted greatly with planets like Venus and Mars, which ended up with atmospheres dominated by carbon dioxide. On Earth, thanks to photosynthetic life, we now have an atmosphere rich in nitrogen and the unique presence of free oxygen.
Women make up 45% of the world’s workforce. What percentage of these women live in poverty?
A.
25%
B.
40%
C.
70%
D.
85%
Answer:
70%
Explanation:
An article was sold for? $7575 but now it's increased by 10%
The value of the article will now increase to $8,332.50.
Explanation:
The article was originally sold for $7575 and is now its value has increased by 10%.
10% of $7575 = $7575 * 10/100 = $757.50.
If we add the above 10% to the value of the article, we will arrive at the current value of the article.
Hence, current value of the article = $7575 + $757.50 = $8332.50
This can also be arrived at by multiplying $7575 by 110%, i.e. $7575 * 110/100 = $8332.50, hence arriving at the same answer.
A coastline on earth experience a high tide at 6 AM. At What approximate time will the next low tide occur and why?
1) 6 PM, because the cosine will turn 90° from the moon
2) 6 PM, because the coastline will turn 180° from the moon
3) 12 Noon, because the coast line will turn 90° from the moon
4) 12 noon, because cosign will turn 180° from the moon
The next low tide will occur at 12 Noon, because the coastline will turn 90 degrees from the moon.
Explanation:
All around the world, along the coastlines, it can be noticed that everyday the water is rising at some points, and then it is retracting at some points. When the water rises it is called a high tide, while when the water is retracting it is called low tide. Both of these tides occur twice every day.
In this case, we have a high tide occurring at 6 AM, meaning that the other high tide will occur at 6 PM, when the moon circles by 180 degrees from the coastline. The low tide also occurs on every 12 hours, which occurs roughly 6 hours after the high tides, so in this case the low tides will occur at 12 Noon and at 12 Midnight. There are variations among the tides, depending on the relative position of the Earth, Moon, and Sun towards each other, some being:
bore tideneap tidespring tiderip tideLearn more about spring tide and neap tide https://brainly.com/question/11545040
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Final answer:
The next low tide after a high tide at 6 AM will likely occur around 12 Noon, due to Earth's rotation bringing the coastline to a position 180° from the Moon, where the low tide occurs.
Explanation:
If a coastline experiences a high tide at 6 AM, the approximate time for the next low tide will be around 12 Noon. This is because the Earth takes approximately 24 hours to complete one rotation, resulting in a cycle of two high tides and two low tides each day. Since a single location on Earth rotates under the tidal bulge, which is influenced by the Moon's gravitational pull, approximately every six hours it will rotate from a position of high tide to a position of low tide. Thus, after a high tide at 6 AM, the next low tide would logically occur about 6 hours later, around 12 Noon, as the coastline rotates 180° away from its position relative to the Moon at high tide.
Does the continental divide separate Canada and the US
The continental divide mostly doesn't separate the territories of the United States and Canada.
Explanation:
Across the North American continent there are several continental divides. When the term continental divide is used, mostly it is used for the great continental divide. The great continental divide runs along the eastern part of the continent, and with its stretching in roughly north northwest-south southeast, it doesn't form the boundary of the United States and Canada.
Apart from the great continental divide, the other five are:
LaurentianArcticSt. LawrenceEasternGreat BasinPart of the boundary between the United States and Canada is indeed formed by some of the divides, namely the Laurentian and St. Lawrence, but they occupy such small parts of the border that makes it totally insignificant, and it is more of an intersection, that actually having a continuity.
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Select all that apply.
Among the accomplishments of Akbar and his son Jahangir were:
the establishment of libraries
the Taj Mahal
the ability for Hindu's to have government roles
conflict between Hindus and Muslims
great opportunity if you were an artist or architect
Answer:conflict between Hindus and Muslims Greta opportunity if you were an artist or architect and the ability for Hindus to have government roles
why is it important to know the source of energy in convection currents to understand plate tectonic theory
Its important to know the source of energy in convection currents because it is what drives the movement of the plates, formation of plate boundaries, and hot spots.
Explanation:
The convection currents are currents that occur in the mantle layer. The prime reason as to why they appear is the difference of heat and pressure between the upper and lower mantle. The energy itself exist because of the core of the Earth, as it is very hot and it has extremely high pressure, so it heavily influences the mantle layer above it.
The importance of understanding the energy source of convection currents is seen in that through it we can understand why we have plate boundaries at some places and not in others, why are spreading zones occurring, and why hot spots occur in the middle of the plates, far away from the boundaries. By understanding these things, we can understand the plate tectonics theory, thus the motion of the plates on Earth's surface.
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Answer:
The Earth's crust and upper part of the mantle are broken into large pieces called tectonic plates. ... The plates move because of convection currents in the Earth's mantle. These are driven by the heat produced by the decay of radioactive elements and heat left over from the formation of the Earth.
Explanation:
Providence canyon, often referred to as Georgia’s Little Grand Canyon, is located approximately 150 miles southwest of Atlanta in a portion of the state known as the Coastal Plain. The Clayton Formation found here is a red-orange sandy clay that is exposed near the top of the canyon. This is the contact area between the lower layer, called the Providence, and the Clayton is irregular and uneven. What does this contact area between the two layers or strata indicate?
Answer:
It is an unconformity, which represents a gap in the geologic record and a period of erosion.
Explanation:
Even Alfred wegener acknowledgement that the apparent fit of continents or matching of continental coastlines was cruel at best. Propose an explanation for this inexact fit
The matching coastlines of the continents of Alfred Wegener was not seen as serious as it was not a real proof of anything, and it also was very limited.
Explanation:
Alfred Wegener is the person that developed and promoted the continental drift theory. His theory was based around numerous evidence, and while some of those evidence were good indicators on their own, some were not, and they were not good enough on their own.
One of the evidence were the matching coastlines of the continents. This on its own wasn't good enough evidence, as it could have easily been just a coincidence that some coastlines match. Also, this was based on the matching coastlines of only two continents, Africa (its western part) and South America (its eastern part). The other continents didn't seemed to have matching coastlines as these two, which was just another reason for the other scientists to claim that it is a coincidence.
Some of the other evidence that Wegener used for his theory were:
fossilsmid-ocean ridge (spreading zones)matching rock strata from different continentsLearn more about the problems the continental drift theory faced at first https://brainly.com/question/7435218
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Final answer:
The inexact fit of continents as observed by Wegener is due to past paleogeography and tectonic activity altering continental coastlines since the breakup of Pangaea. Wegener's initial absence of a convincing mechanism for continental movement contributed to skepticism, until plate tectonics provided a solid explanation for the continents' drift.
Explanation:
The inexact fit of continents as proposed by Alfred Wegener in his continental drift hypothesis can be attributed to several factors. Wegener's observation that the coastlines of some continents, such as South America and Africa, appeared to fit together like a jigsaw puzzle, served as one of his initial pieces of evidence. However, paleogeography and tectonic activity have altered the shape and position of continental coastlines since the breakup of the supercontinent Pangaea. This resulted in the inexact match that we observe today. Moreover, Wegener struggled to provide a convincing mechanism for continental movement, initially suggesting forces like Earth's rotation (poleflucht) and tidal forces, which were later proven to be insufficient. Ultimately, the development of plate tectonics, with the understanding of seafloor spreading and tectonic plate interactions, offered a more concrete explanation for the movement of continents.
How many types of rocks can form from the rock cycle?
1
2
3
4
Answer:
the amount of rocks that can be formed from the rock cycle are 3
descripe the troposphere and stratosphere and mesosphere.be sure to include what altitude one culd find this layer and what is found in the layer
Answer:
Troposphere, stratosphere and mesosphere are the layers of Earth's atmosphere. Their features are as it follows in the explanation bellow.
Explanation:
Troposphere is the lowest layer of atmsphere, and this is the area where all weather phenomenon and life happen. Troposphere goes up to 18 kilometers in height. This is also the densiest layer of atmoshere where almost all water, clouds and air processes exist. Troposhpere is the only one sphere where life is possible.
Stratosphere is the layer between 18-20 km up to 50-55 km in height, above the Earth's surface. This layer is well known for great concentration of ozone (somewhere between 20 and 25 km), and that area is called - ozone layer. Ozone is very important because it absorbs most of the Sun's ultraviolet radiation.
Mesosphere is the layer just above the stratosphere and it spreads between 50-55 km up to 80-90 km. Mesopshere is characterized by significant temperature drop (lower parts has around 0 degrees and uppermost parts are very cold, at -90 degrees Celsius). Upper segments of mesopshere is known as ionosphere. That is the layer with charged iones, and it is well known for formation of polar light (aurora)
square root of 55+67
Answer:
11.04
Explanation:
55+67 = 122
sqrt of 122 is 11.04
Answer: 11.04536
Explanation:
Firstly you add up the number
55+67= 122
Which we know the square root of 121 is equal to 11
Geographers use the concept of regions when
A. creating new types of map projections.
B. describing physical and cultural characteristics.
C. determining absolute location.
D. examining plate tectonic trends.
The concept of regions is used for describing physical and cultural characteristics.
Explanation:
The term region is one that is very commonly used in geography, in pretty much all of its subdivisions. The reason for that is that this term represents an area that is either physically marked or it is marked by some human characteristic. Those two factors are the ones that are used the most when it comes to describing a region.
A region that is describing physical characteristics of an area is one where the physical features make an area specific and different from its surroundings. When there is a cultural region in question, the area is unique because of the cultural traits of the humans that live there.
Examples of physical regions are:
Tikvesh ValleyTibetan PlateauAmazon BasinExamples of cultural regions are:
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Look at the diagram and then answer the following questions.
The process shown in this diagram is (Convection: Subduction: Conduction)
Letter A in the diagram indicates a (Mid-ocean ridge: Volcano: Deep-Ocean trench)
The oldest area in the diagram is (A, B, C, D)
1. The process shown in the diagram is Subduction process.
The Subduction process is a geological process where the oceanic lithosphere is been recycled into the Earth's mantle at the convergent boundaries.The process is caused when tectonic plates slides underneath another one.2. The Letter A in the diagram indicates a Deep-Ocean trench.
The deep ocean trenches are usually long.3. The oldest area in the diagram is B. because the plate has been in long existence and slides underneath another plates.
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Answer:
Answer:B,C,B
Explanation:
I need Help. The product of nuclear fusion is ______.
Answer:
Helium nucleus.
The historic movement of upper-class and Caucasian populations out of US inner cities has been nicknamed?
White flight is the historic movement of upper class and Caucasian populations out of US inner cities has been nicknamed.
Explanation:
White flight is referred to as the sudden or large scale migration of people that is white people from various areas becoming diverse. White class population migrated during the Civil right movement during 1950s and 1960s. Cities that were involved were Detroit, Cleveland, Oakland and Kansas city.
Some of the historians suggest that white flight took place due to excessive population pressure due to large migration of the black people from the south that was rural in nature to the northern and western cities that was urban in nature.
The term 'C. white flight' refers to the migration of middle and upper-class whites from racially mixed urban areas to suburban regions. It highlights a pattern of urban change and socioeconomic shift in American cities during the twentieth century.
The historic movement of upper-class and Caucasian populations out of US inner cities has been nicknamed white flight. This term was coined in the mid-twentieth century and describes the large-scale migration of economically secure whites from racially mixed urban areas to more racially homogeneous suburban regions. This migration was a significant aspect of the socioeconomic landscape in the United States throughout the twentieth century, influenced by various factors including discriminatory housing policies and urban planning that negatively affected ethnic minorities. White flight not only changed the racial composition of cities but also had profound effects on urban economic resources, public services, and educational systems, contributing to a cycle of urban decline and suburban prosperity.
Complete Question:
The historic movement of upper-class and Caucasian populations out of US inner cities has been nicknamed __________.
A. class diffusion
B. class migration
C. white flight
D. white transference
What kind of Climate is shared by Northern California, Oregon, and the state of Washington?
a. Marine West Coast
b. Tropical
c. Steppe & Tundra
d. Maritime Coast
Answer:A. Marine West Coast
Explanation:
Final answer:
The climate shared by Northern California, Oregon, and the state of Washington is a Marine West Coast climate, characterized by moderate temperatures and high precipitation.
Explanation:
The climate shared by Northern California, Oregon, and the state of Washington can be classified as Marine West Coast climate (option a). This climate is characterized by moderate temperatures throughout the year, with cool summers and mild winters. There is also a high amount of precipitation, especially in the form of rain, due to the proximity to the ocean. This climate supports lush temperate forests and a variety of wildlife. The rain shadow effect, caused by the western mountain ranges, creates semi-arid conditions on the leeward side, which affects eastern parts of Washington and Oregon, but the coastal regions do experience the Marine West Coast climate.
The population density of the Philippines is 798 people per square mile. If
many refuges arrive from a neighboring country how will they affect the
population density?
O A. Cannot be determined.
O
B. The population density will decrease.
C. The population density will increase.
D. The population density will remain the same.
The answer is option C - "The Population Density will increase"
Explanation:
If refugees arrive from a neighboring country to Philippines, it will result in more number of people living on the island. However, the land area of the country remains the same, since there is no change to that. Let's assume that the total land area of Philippines is "x" square miles. And assume that there are "y" number of people living on the island already. Let's also assume that "z" number of people arrive as refugees.
From the question, we know that "y" / "x" = 798. This is the existing population density.
Now, if refugees arrive, total number of people living on the island will become "y+z".
Since "y+z" > than "y",
=> "y+z"/"x" will be greater than "y"/"x", i.e. it will be greater than 798.
Therefore, the population density (i.e. 798) will increase.
9. What subspecialty of Earth science studies patterns of weather over a long period of time?
a. geochemistry b. climatology C. tectonics
d. paleontology
Answer:
B. Climatology
Explanation:
Earth science studied the patterns of weather over a long period of time is called climatology. Weather is shorter phenomenon and day to day activities whereas climate is the longer and average climatic conditions over a period of 30 years. Climatology deals with the study about the temperature, precipitation, humidity, and pressure in the specific area in the world. Tectonics is the branch of the geomorphology which deals about the inner and outer surface of the earth.
The skeletal system is made of bones that ? Soft body organs and work with the body’s ? System
Answer:
The skeletal system is made of bones that protect soft body organs and work with the body’s muscular system
Explanation:
In the musculoskeletal system, the muscular system and the skeletal system work to protect, support and move the body. The bones - as part of the skeletal system - protect the body's organs including the heart, lungs, liver etc. support the body, and maintain its structure and posture. The muscles control movement of the body and contribute to strength and stability
what is your religion and why?
Answer:
I cant help you with that answer
Explanation: I cant help you beacause this is talking about your religion, not mine thank you.
PLEASE HELP !!
The figure shows three right triangles. Triangles ABD, CAD, and CBA are similar.
Theorem: If two triangles are similar, the corresponding sides are in proportion.
Using the given theorem, which two statements help to prove that if segment BC is x, then x2 = 74?
1) Segment BC ⋅ segment DC = 49
Segment BC ⋅ segment BD = 35
2) Segment BC ⋅ segment DC = 49
Segment BC ⋅ segment BD = 25
3) Segment BC ⋅ segment DC = 25
Segment BC ⋅ segment BD = 35
4) Segment BC ⋅ segment DC = 25
Segment BC ⋅ segment BD = 49
Answer:
2)
Segment BC ⋅ segment DC = 49
Segment BC ⋅ segment BD = 25
Explanation:
Just did it and it was right
Segment BC ⋅ segment DC = 49
Segment BC ⋅ segment BD = 25 are the two statements help to prove that if segment BC is x, then x2 = 74. Hence, option B is correct.
What is right triangles?A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The sum of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse.
Because carpenters must ensure that walls are straight and corners are square, the notion of right triangles is applied. The lengths of the sides of a right triangle are related by the Pythagorean Theorem. Additionally, carpenters utilize curves to build arches above windows and doors by utilizing the characteristics of circles.
To ensure that walls are straight and level, carpenters employ the right triangle principle.
Thus, option B is correct.
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What does an open primary mean?
A. Even minors can vote
B. Secret ballots are not used.
C. All voters can participate
Answer:
C. All voters can participate
An open primary allows all registered voters to participate in selecting a party's candidate for the general election, regardless of the voter's party affiliation, but they may only vote in one party's primary.
An open primary means that all voters can participate in the primary election, regardless of their party affiliation, but they can vote in only one party's primary. This system allows for a more inclusive voting process, where even independent voters have the opportunity to play a part in selecting candidates for the general election. States like Texas, Alabama, Arkansas, and several others operate under this system. Open primaries can lead to a practice known as raiding, where voters from one party cross over to vote in another party's primary in hopes of influencing the selection of a weaker opponent for the general election.
What is the most recent addition to the list of Eastern Europe's polluters?
acid rain
cars
industry
radioactivity
Answer:
i'd say the answer would be cars
What is the capital of egypt
Answer:
Cairo is Egypt's capital city and also the most populous city in the country. The city is located in Lower Egypt which is a section of Egypt encompassing the fertile Nile delta and the land between Upper Egypt and the northern Mediterranean coast.
Explanation:
Answer:
Cairo is Egypt's capital city
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if you can sub to vegangaming on yout_ube
Karen wants to rent a boat and spend less than $57. The boat costs $7 per hour, and Karen has a discount coupon for $6 off. What are the possible numbers of
hours Karen could rent the boat?
Use t for the number of hours.
Write your answer as an inequality solved fort.
Answer:
t7-6= less than 57
Explanation:
you need to isolate the variable (t)
t7 divided by 7= 57 divided by 7
times seven and divided by seven cancel each other out, so you would divided 57 by seven, witch is 8.14.
don't know for sure but i hope it helped!!!!
What are the three major river systems in South America
Answer:
Amazon, Orinoco, and Paraguay
Explanation:
Answer:
The Amazon
Orinoco
Paraguay/parana
Explanation:
The Amazon happen to be one of the largest river in the world with space of about 7million square kilometers
Orinoco is about 2736 kilometers and flows from the north of the Amazon
Paragua/Parana
Flows from the southeastern Brazil and covers about 2.8 million kilometers
Which statement about the socioeconomic status of the U.S. / Canada region is accurate?
a. Dangerously low
b. Very similar to Latin America
c. Among the World’s highest
d. Lower than that of most Europeans
Answ the worlds highest
Explanation:
The Europeans practiced
against the Native Americans.
Race and Ethnicity: Select the best answer from the choices provided.
O A.
assimilation
O B.
segregation
O
C.
pluralism
OD. genocide
THE
Reset
Next
Assimilation was practiced by the Europeans against the Native Americans.
Explanation:
Cultural Assimilation is referred to as the process where small groups or culture form a dominant group. The cultural assimilation was an effort made by the Europeans to convert the culture of Native Americans into the culture of European- American in between 1790 and 1920.
United States also established boarding school for the Native American and the children had to attend the school. In case of cultural assimilation a person's language or a group of person's language and culture tries resemble with another group.
Answer: The answer is D. Genocide
NOT A. assimilation
Prejudice and Racism: Quiz
The Europeans practiced _____ against the Native Americans.
Explanation:
Europeans practiced genocide against the Native americans.
Genocide means: killing of a large number of people from a nation or ethnic group aiming to destroy that nation or group.
Assimilation means: the process whereby individuals or groups of differing ethnic heritage are absorbed into the dominant culture of a society.
The purpose of a political map is to identify
a Coastlines
b. Governmental boundaries
C. Mountain Ranges
d. Populations
Synonym for Mansa musa
Answer:
sultan
Explanation: