which has forms 21% of earths atmosphere?

Answers

Answer 1

Answer:

Oxygen

Explanation:

Nitrogen gas forms 78%, Oxygen forms 21% and the last 1% consists of various other gases.

Oxygen and Nitrogen are used in various compounds that are essential for plants and animals to survive.


Related Questions

Please select the word from the list that best fits the definition
the amount of water vapor in the air

Answers

Answer:

HUMIDITY

Explanation:

THE AMOUNT OF WATER VAPOUR IN THE AIR IS CALLED HUMIDITY.

Answer:

B. Relative Humidity Increases

Explanation:

I had this in my unit test review and got it right

                                                          Have a nice day :)

PLEASE HELP ASAP!!!!!! 25 POINTS!!!!!!!!!!!!
Analyze the map below and answer the question that follows.

Image courtesy of NASA

The landform located at number 1 on the map above is __________, and the landform located at number 4 is __________.
A.
Baja California . . . the Yucatan Peninsula
B.
the Yucatan Peninsula . . . Baja California
C.
the Anatolian Peninsula . . . the Yucatan Peninsula
D.
Baja California . . . the Anatolian Peninsula

Answers

It might be C. But I’m not sure
I chose C because most peninsula’s have water surrounding them on 3 side

hi:) is it true that there’s an ocean trench as long as subduction occurs?

Answers

Answer:

Yes it is true

Explanation:

This is because when subduction occurs an ocean trench is created

Because Hindus believe that every living thing has a soul, they

Answers

Answer:

Hindus believe that every living thing has a soul, which comes from the creator, Brahman. They believe that people's souls live on after death, and that all living things can be reborn. Reincarnation

Many features found in South Coyote Buttes have this same
striking appearance. What could cause rocks to be shaped this
way? Explain your answer.

Answers

Answer:

Explanation:

Buttes and mesas are profound features of rock erosion and weathering activities over an extended period of time.

A butte is a smaller land form compared to mesas. They are made up of flat tops and very steep to vertically sided slopes along their height.

They are typically created by erosion. The most profound action of wind and water erosion carves out a butte.

These land forms usually forms from erosion of a mesa. The hard resistant caprock is not carried away. The remaining formations around it are eroded leaving behind an isolated structure. They are predominant in arid regions. Eventually the hard resistant caprock can fall off to form screes.

The striking appearance of rocks in South Coyote Buttes, characterized by their unique shapes and patterns, can be attributed to a combination of geological processes, primarily weathering and erosion.

Weathering is the breakdown of rocks at the Earth's surface, which can occur through physical or chemical processes. Physical weathering includes the mechanical disintegration of rock without any change in the mineral composition. This can be caused by the expansion of water when it freezes in rock crevices, a process known as frost wedging. Additionally, the heating and cooling of rocks can cause them to expand and contract, leading to cracks and eventual breakage.

what is rural dilution?​

Answers

Final answer:

Rural dilution, although not a commonly defined term, likely refers to the process whereby rural areas lose their distinct rural characteristics and socioeconomic fabrics due to factors such as economic decline, population decrease, and environmental changes. This concept is closely related to rural flight, wherein rural populations decrease as individuals migrate to urban areas in search of better opportunities.

Explanation:

The term rural dilution does not have a widely recognized definition in academic or policy literature. However, drawing from the context of similar concepts, it might relate to either the process of rural areas becoming less rural through the introduction of urban characteristics (akin to urbanization or rural flight) or the dilution of rural community characteristics due to external factors, such as economic decline, population decrease, or environmental changes. This phenomenon is often observed when there is a decrease in the rural population due to migration to urban areas for better opportunities, which is a part of rural flight. The economic and social fabric of rural areas can become 'diluted' as the population decreases, leading to a loss of community services, erosion of cultural practices, and changes in land use that further diminish the rural character of these areas.

Rural dilution can significantly impact the social, economic, and environmental wellbeing of rural communities. Economic challenges emerge from the loss of agricultural productivity and local businesses, while social impacts arise from the erosion of community bonds and cultural practices. Environmentally, changes in land use can affect local ecosystems, contributing to issues like soil degradation and loss of biodiversity. The process is somewhat analogous to the dilution of a solution, where the original composition changes with the addition of more solvent. Similarly, rural areas undergo dilution when their original socio-economic and cultural compositions are altered by external factors such as migration and environmental changes.

Final answer:

Although 'rural dilution' is not a standard term, it broadly encompasses themes related to the migration from rural areas to urban ones (rural flight), environmental changes due to agricultural practices, and sustainable development strategies to mitigate such effects.

Explanation:

The term "rural dilution" does not directly refer to a widely recognized concept in Social Studies or related disciplines. Instead, it appears to be a thematic synthesis of the issues related to rural development, urbanization, and environmental management. Examining the provided information, we draw parallels with known phenomena such as rural flight, environmental impacts of agricultural practices, and the strategies for sustainable rural development.

Rural flight refers to the migration of people from rural areas to urban areas, often due to the industrialization of agriculture and the consolidation of related services. This process can lead to a dilution of rural communities both in terms of population density and the cultural richness of rural life. Similarly, practices in rural areas like bare-soil agriculture or clear-cutting of forests can lead to environmental dilution by increasing erosion and sediment yield, thus impacting local ecosystems. In terms of solutions, sustainable management of rural resources, such as wildlife management with community involvement, represents an effort to address some of these challenges by promoting collective ownership and responsible stewardship of natural resources.

In summary, while the term "rural dilution" is not specifically defined in academic literature, it can be understood as a multifaceted phenomenon involving the decline of rural communities, environmental degradation, and the search for sustainable development strategies.

Describe the terrain of eastern anotolia

Answers

Answer:

The Eastern Anatolia Region (Turkish: Doğu Anadolu Bölgesi) is a geographical region of Turkey. ... It has the highest average altitude, largest geographical area, and lowest population density of all regions of Turkey.

Answer: Mountainous.

The __of an ecosystem is based on whether the population in the
system destroys the natural resources of that system.​

Answers

Answer: sustainability

Explanation:

The sustainability of an ecosystem is based on whether the population in the system destroys the natural resources of that system.​

What does the ecosystem mean?

The ecosystem is a geographical area where plants, animals, other living things, weather, and landscapes work together to form bubbles of life. Ecosystems contain biological or living parts and abiotic or non-living parts. Biological factors include plants, animals, and other organisms. Ecosystems are made up of all living things and the physical environment in which they interact.

These biological and abiotic elements are linked by the nutrient cycle and the flow of energy. Energy enters the system by photosynthesis and is incorporated into plant tissue. As a society, we rely on healthy ecosystems for many things. Clean the air for proper breathing, isolate carbon for climate control, circulate nutrients to access clean drinking water without expensive infrastructure, and pollinate plants to avoid hunger. increase.

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All of the following duties are responsibilities of county government officials except __________.
A.
administering local, state, and federal elections
B.
regulating public service corporations
C.
maintaining rural roads and highways
D.
recording vital statistics, such as births and marriages

Answers

Answer:

b

Explanation:

due to it being public

Answer:

B

Explanation:

2. Solve for in the figure below. Show your work.
22°
3x+11​

Answers

Answer:

Are u saying it equals to 22??

water covers how much of the surface of our planet?

Answers

Answer:

71%

Explanation:

Answer:

About 71 percent of the Earth's surface is water-covered

Explanation:

Fish in the rain-forest travel to abnormal places when flooding occurs.True or False?

Answers

Answer: false

-angie:) .   pls mark me brainliest

Explanation:Nope, You want to fish right before or during the rain, Fish tend to bite better when the barometer is falling, due to pressure, A lot of time they are very stressed after the rain and do not want to eat.

russia’s suffering during the conflict cause a revolution in which _____ became the basis for the new government

Answers

Answer:

Either communism/socialism

Explanation:

Creation of the Soviet Union from the strains of the Russian Empire within WW1.

how would a fossil fuel that formed when there was an ancient ocean be different than one that formed where there was once an ancient swamp forest

Answers

Answer:

a fossil fuel that was formed when a ancient ocean be different from a fossil fuel that was once a swamp forest is that a ocean has more species and a swamp has less species. So you will mostly find better fossils in an ancient ocean than a swamp forest

Explanation:

The fossil fuel that was formed in the ancient ocean is much better it would be in great quantity due to having a lot of species and the swamp has fewer species.

What are major sources of fossil fuel?

Fossil fuel has made by decomposing the waste tree and animals. Ofter it is found in the earth's lower crust which is used for energy, coal, gas, oil, and natural gases.

Some sources of fossil fuel are coal, petroleum, natural gas, and Orimulsion. Fossil fuel is considered a non-renewable source of energy.  It took millions of years to form the fossil fuel.

Therefore fossil fuel is in great quantity in the ocean and less in the swamp.

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How can we reduce the impacts of harvesting trees?

Answers

1)Plant a Tree where you can.
2)Go paperless at home and in the office.
3)Buy recycled products and then recycle them again.
4)Buy certified wood products. ...
Support the products of companies that are committed to reducing deforestation.

What sea lies along the eastern coast of Greece? I​

Answers

Answer:

Aegean Sea.

Explanation:

Ancient Greece had the Mediterranean Sea to the west, and the Aegean Sea to the west.


Based on this list, in which of the following places does an infant have the smallest chance of surviving to its first birthday?
Foreign Aid and the U.S.: Select the correct answer from the choices provided.
A.Israel
B. Japan
C. Germany
D. Washington, D.C.

Answers

Answer: Washington, D.C.

BRAINLIEST!! HELP!!
6. _______ can cause an explosive eruption from a shield volcano.

A. Crater collapse, forming a caldera

B. Water accumulating inside the vent

C. Gases released during an eruption

D. Eruptions from shield volcanoes are never explosive

Answers

Answer:

B. Water accumulating inside the vent

Explanation:

Eruptions at shield volcanoes are only explosive if water somehow gets into the vent , otherwise they are characterized by low-explosivity fountaining that forms cinder cones and spatter cones at the vent, however, 90% of the volcano is lava rather than pyroclastic material.

Hope this helps!!

Water accumulating inside the vent can cause an explosive eruption from a shield volcano. option (B) is correct.

What is a volcano?

A volcano is a crack in a planet's crust, such as the one on Earth, that permits hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Most volcanoes on Earth are found underwater, and they are most frequently found where tectonic plates are diverging or convergent.

Shield volcano eruptions are only explosive if water somehow enters the vent; otherwise, they are characterized by low-explosivity fountaining that creates cinder cones and spatter cones at the vent. 90% of the volcano is made up of lava, not pyroclastic material, though.

A volcano is an aperture or vent through which lava, tephra (small rocks), and steam are released onto the surface of the planet. Days, months, or even years might pass between eruptions of volcanoes.

Therefore, A shield volcano's eruption can be explosive if water builds up inside the vent. It is proper to select (B).

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How does tradition in West Africa affect women's rights?

Answers

Answer:

Discrimination and violence against women.

Explanation:

There are laws to protect the rights of women in certain parts of Africa; however, there is still discrimination and violence against women in Africa. The existing laws that supposedly protect women's rights are often not implemented or enforced in the African communities because historical creation of patriarchal systems are still practiced to this day. Based on the aforementioned, we can discern that African traditions and women's rights contradict one another.

what is distinguishing feature of thunderstorms

Answers

Answer:

Anvil Top

Explanation:

The distinguishing feature of severe thunderstorms is their extended mature stage, enabled by vertical wind shear that separates updrafts from downdrafts, allowing for phenomena like mammatus clouds, torrential downpours, and more.

What is the distinguishing feature of thunderstorms? The key factor that sets severe thunderstorms apart from ordinary thunderstorms is their ability to remain in the mature stage for a significantly longer period. This extended duration is primarily due to the presence of vertical wind shear across different levels. In severe thunderstorms, fast upper-level winds, such as those from the jet stream, effectively separate the updrafts from the downdrafts. This separation prevents the downdrafts from cutting off the updrafts, thus prolonging the storm's mature stage. Severe thunderstorms can produce a range of intense phenomena including mammatus clouds, torrential downpours, flash flooding, large hail, lightning, and straight-line winds. Additionally, these storms are characterized by the distinct separation of cold downdrafts and warm updrafts, where the former, upon hitting the ground, can surge ahead of the storm as a cool blast of air.

PLEASE ANSWER QUICK
The death rate decreased after the 1950s because
1. medical care
2. the climate
3. political situations
improved in several nations.
1. wars
2. infant mortality
3. food production
also began dropping dramatically.​

Answers

Answer:

1. medical care

3. political situations improved in several nations

Explanation:

I believe these two answer are the correct ones, because when the war (WWI) in America was over, many politics and the president were more focused on the well being of it citizens. They passed laws and improved social security for citizens which means medical care for the disable, poor, orphans, and the elderly.

Hoped this helped. :)

Final answer:

The decline in death rates after the 1950s can be credited to advancements in medical care, including vaccinations and antibiotics, significant improvements in food production, and enhanced public health infrastructure, leading to better hygiene and sanitation.

Explanation:

The decrease in death rates after the 1950s can be attributed to several advancements. Firstly, improvements in medical care played a crucial role. The introduction of vaccinations and antibiotics prevented and cured many infectious diseases, respectively, saving countless lives. Secondly, advancements in food production methods during the Green Revolution led to an increased food supply, reducing death rates due to malnutrition or starvation. Lastly, enhancements in public health infrastructure, such as better water supplies and sewage systems, vastly improved overall public health and hygiene, contributing to lower death rates.

The impact of these factors was so profound that by 1965, the death rate among developed nations had reduced to about one-quarter of its 1800 level. Similarly dramatic declines in death rates were observed in developing nations, though birth rates remained relatively unchanged there, resulting in higher population growth rates. Technological advancements from the Industrial Revolution also bolstered the improvements in food distribution and public health.

How many people live in the urban center of Buenos Aires, Argentina? How do economic activity and climate help explain why so many people live in Buenos Aires?

Answers

Answer:

2.89 Million People

Explanation:

Most of Argentina is mountainous (The Western side), which has extreme cold temperatures which makes it a popular skiing destination for tourists, it also happens to be not as populated. However, what makes Buenos Aires so different is that it's along the ocean, which makes it a much more livable and sustainable climate, it also gets a large economic boost because it has a large docking and trade system located there.

Examples of this would be other lightly populated rough climate countries such as Mongolia, which has only a population of 3 million despite it's large land borders.

Final answer:

The urban center of Buenos Aires, Argentina is home to about 13 million people, due to the city's economic activity and favorable climatic conditions. As Argentina's economy developed, more people moved into urban areas, a trend known as agglomeration. The city's temperate climate also makes it a desirable place to live.

Explanation:

The urban center of Buenos Aires, Argentina, is populated by about 13 million people, accounting for one-third of Argentina's total population. This dense habitation is due to a mix of economic and climatic factors. Economic activity in Buenos Aires is robust due to the city's status as a hub for various industries and services. The cultural richness and high standard of living attract many people to settle in the city.

As economies develop, a larger proportion of the population moves into urban areas. This observable trend, known as agglomeration, is driven by the economic opportunities available in the city. Buenos Aires, like other metropolitan cities, offers better job opportunities, infrastructure, and resources, fueling population growth in urban areas.

Further, the climate in Buenos Aires is temperate, making it conducive for year-round living. The city's geographic location and climate have helped it grow and develop into an attractive and habitable urban center.

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Which of the following has NOT been a result of improved transportation?
faster movement of people, products, and ideas
increased CO2 emissions
increased pollution
reduced dependence on nonrenewable resources

Answers

Answer:

reduced dependence on nonrenewable resources

Our dependence on fossil fuels has actually increased dramatically as more and more people own vehicles. Vehicles are becoming more efficient, but with so many on the road at once, we're burning through our nonrenewable resources fast. It may not happen on our lifetimes, but we'll run out eventually and unless we find a better source of energy by then, we'll be in a bad situation

Explanation:

Which region remains a source of conflict between India and Pakistan?
A. Khyber Pass
B. Bangladesh
C. Nepal
D.Kashmir

Answers

Kashmir
The conflict started after the partition of India in 1946 as a dispute over the former princely state of Jammu and Kashmir and escalated into three wars between India and Pakistan and several other armed skirmishes. China has also been involved in the conflict in a third-party role.

The region that remains a source of conflict between India and Pakistan is Kashmir. Thus, the correct answer is option D.

What is the Kashmir conflict?

The Kashmir conflict is a territorial dispute over the Kashmir region, primarily between India and Pakistan, but also between China and India in the region's northeastern portion.

The conflict began as a dispute over the former princely state of Jammu and Kashmir following India's partition in 1946 and escalated into three wars between India and Pakistan, as well as several other armed skirmishes. China has also played a role in the conflict as a third party.

Despite a fragile cease-fire in place since 2003, both countries regularly exchange fire across the contested border, known as the Line of Control.

Therefore, Kashmir is the region that remains a source of conflict between India and Pakistan.

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What principle of government is being described in this passage? A) Federalism B) Separation of Powers C) Checks and Balances D) Republican Government

USA TEST PREP

Answers

The answer is b be a the powers are separated

Answer: C) checks and balances

Explanation:I took the USA Test Prep and that was the right answer

Can tell me the answer

Answers

Answer:

c

Explanation:

the carolingian renaissance was a revival of learning in medieval europe

Answers

True
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What effect does Earth’s spherical shape have on the amount of sunlight that reaches the equator?
A.
The latitudes near the equator receive direct sunlight, which causes a high-pressure system.
B.
The latitudes near the equator receive indirect sunlight, which causes a low-pressure system.
C.
The latitudes near the equator receive direct sunlight, which causes a low-pressure system.
D.
The latitudes near the equator receive indirect sunlight, which causes a high-pressure system.

Answers

C. The latitudes near the equator receive direct sunlight, which causes a low-pressure system.

Explanation:

The spherical shape of Earth has very big influence on the climatic conditions on it. The sunlight is falling at different angles at different places, the air pressure is different, the wind belts are influenced by it, the temperature variations are very large etc.

Near the equator, for example, the sunlight falls at more direct angle. This means that the sunlight is more concentrated, so the surface receives more heat. The temperatures are high because of this all year round, and the air pressure is mostly low, as the warm air is more dispersed and weighs less, and the high evaporation means lot of water vapor which lowers the weight of the air even more.

Final answer:

The Earth's spherical shape affects the amount of sunlight that reaches the equator by creating a high-pressure system due to direct sunlight. This has significant impacts on Earth's climate zones and weather patterns.

Explanation:

The Earth's spherical shape affects the amount of sunlight that reaches the equator in the following way: the latitudes near the equator receive direct sunlight, which causes a high-pressure system. The direct sunlight at the equator warms the air, causing it to rise and creating an area of low pressure. This atmospheric circulation pattern, known as the Hadley cell, is fueled by the intense solar radiation at the equator and plays a key role in the formation of Earth's climate zones and weather patterns.

How can humans reduce wind erosion and wave erosion?
A. by preventing farming in the affected areas
B. by spraying the affected areas with fertilizers
C.
by planting more trees in the affected areas
D. by supplying water to farmland​

Answers

Answer:

C. by planting more trees in the affected areas.

Explanation:

The trees serve as wind/wave breakers. They slow the wind/wave down, thereby reducing its effect.

Answer:

C.  by planting more trees in the affected areas

Explanation:

to reduce wind erosion is to keep the wind off the soil surface and keep it off the surface you could cover the soil surface. To cover the soil surface you could plant trees, vegetation, or any other types of plants.

list three features of a tropical biome

Answers

Answer:

three features of the tropical forest biome.

- plenty of fauna and flora

- weather conditions include high amount of rain

- rare tribal groups live there

Answer: very high annual rainfall, high average temperatures, and nutrient-poor soil.

Explanation: The tropical rainforest biome actually has 4 main characteristics, and tue word rainforest implies that these are some of the worlds wettest ecosystems. I would suggest getting help from a teacher if you are struggling in this lesson....i wish the nest of luck to you and god bless...

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