What percentage of the atmosphere does nitrogen gas make up?.

Answers

Answer 1
The air in the Earth’s atmosphere is made up of approximately 78% nitrogen and 21% oxygen.

Related Questions

In 1914, who controlled the shaded areas on the map?

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Answer:

france is the one who controlled the shaded areas on the map :)

What is a geographic information system?

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Answer:

A Geographic Information System (GIS) is a computer system that analyzes and displays geographically referenced information. It uses data that is attached to a unique location. Most of the information we have about our world contains a location reference: Where are USGS streamgages located?

Explanation:

Small, circular piles of basaltic lapilli and volcanic debris are called Choose one: A. cinder cones. B. craters. C. calderas. D. fissures.

Answers

Answer:

I think it is b or c, but I will go for c.

Select the correct answer.
In the United States, which academic discipline contains archaeology as a subfield?
A.
science
B.
history
C.
geology
D.
anthropology

Answers

Answer:

d

Explanation:

Anthropology has traditionally been divided into four subfields: cultural anthropology, archaeology, biological anthropology, and linguistic anthropology.

The geography on North America

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Answer:It is the third-largest country in the world by area and has a varied topography.

The eastern regions consist of hills and low mountains, while the central interior is a vast plain (called the Great Plains region).

The west has high rugged mountain ranges (some of which are volcanic in the Pacific Northwest.It can be divided into five physical regions: the mountainous west, the Great Plains, the Canadian Shield, the varied eastern region, and the Caribbean.

If you were to track a group of stars over a period of two weeks, what inferences could you make?(2 points)

Stars change color

Stars create a pattern

Stars disappear

Stars move faster than Earth

Answers

Answer:b

Stars create a pattern

Explanation:

A country with a high dependency ratio probably has
a. a low birth rate, low gender inequality, and a low standard of living.
b. a low birth rate, low gender inequality, and a high standard of living.
c. a low birth rate, high gender inequality, and a low standard of living.
d. a high birth rate, high gender inequality, and a low standard of living.
e. a high birth rate, high gender inequality, and a high standard of living.

Answers

Answer: it is a

Explanation because the economic status means that people have less money, thius, meaning they wont give birth as often

How do uplift and subduction lead to the transformation of rocks?

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Uplift and subduction can expose rock formations to different energy sources, which can transform them.

Please help i cant really figure what else is there

Answers

Answer:
I think it might be Mountains, trenches and volcanos
Explanation:

Briefly describe how carbon enters and exits a consumer, such as the sheep shown in this diagram.(subject is actually science)

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Answer:

when animals breathe or die they give off carbon dioxide, humans when we eat and breathe we are exalting carbon dioxide that goes into the atmosphere.

“Antioch, April 22, 201, Evening.” The caravan Writing Journal Entry #5:has reached its final destination – Antioch, the western end of the Silk Road. You are one of the few
people to travel the entire length of the route! Reflect on this once-in-a-lifetime achievement. Also,
review the ledger, which lists some of the trade transactions that took place during your journey. Has
the journey turned out the way you hoped? Was the long journey worth the difficulties you endured?
How do you feel about the return journey? Record your thoughts in your journal.

Answers

Answer:

“Antioch, April 22, 201, Evening.”

Explanation: I am right

What is the primary distinction between modern communism and socialism?
A.
Karl Marx conceptualized socialism as a response to capitalism, but communism only came into being after the Russian Revolution.
B.
Socialism is a theoretical ideal proposed by economists but never put into practice, and communism was the dominant economic system of the 1900s.
C.
Communism is a particular form of socialism practiced today in many modern democracies in western Europe.
D.
Socialism allows for some private ownership of property and businesses, but communism has the government hold all property.

Answers

Answer: One way communism differs from socialism historically is that it calls for the transfer of power to the working class by revolutionary rather than gradual means.

Explanation: Socialism allows for some private ownership of property and businesses, but communism has the government hold all property.

The major land forms of Ethiopia are ______and______.​

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the northern highlands, and the Rift Valley,

PLEASE ANSWER
Identify and explain ONE way that the populations of the NASWA attempt to secure a reliable water supply in this very dry region

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Answer:

Water scarcity can mean scarcity in availability due to physical shortage, or scarcity in access due to the failure of institutions to ensure a regular supply or due to a lack of adequate infrastructure.

Water scarcity already affects every continent. Water use has been growing globally at more than twice the rate of population increase in the last century, and an increasing number of regions are reaching the limit at which water services can be sustainably delivered, especially in arid regions.

There is not a global water shortage as such, but individual countries and regions need to urgently tackle the critical problems presented by water stress. Water has to be treated as a scarce resource, with a far stronger focus on managing demand. Integrated water resources management provides a broad framework for governments to align water use patterns with the needs and demands of different users, including the environment.

What happens to the carbon that cannot be absorbed by Earth’s sinks?

Answers

Answer:

Explanation:

What happens to carbon in carbon sinks?

A carbon sink absorbs carbon dioxide from the atmosphere. The ocean, soil and forests are the world's largest carbon sinks. A carbon source releases carbon dioxide into the atmosphere. Examples of carbon sources include the burning of fossil fuels like gas, coal and oil, deforestation and volcanic eruptions.

Not the top boy just the boy under the but that says Human Geography

Answers

Answer:

Section A

Primary Activity= Farmer

Secondary Activity= Metal worker

Tertiary Activity= Dentist

Section B

1). Towns

2). Hamlet

3). Conurbation

Explanation:

Hope this Helps!!! Have a great day Sry if I'm wrong but i'm 100% sure

Which South Asian country has significant industry including a technology sector?
a. Nepal
b. Bangladesh
c. Bhutan
D. India

Answers

Answer: D.

India has long branded itself as the world's leading outsourcing destination for global companies, particularly for those in the technology sector - but in the Fourth Industrial Revolution, the time is ripe for the world's most populous country to reinvent itself.

what led to apartheid

Answers

Answer:

The Great Depression and World War II brought increasing economic woes to South Africa, and convinced the government to strengthen its policies of racial segregation. In 1948, the Afrikaner National Party won the general election under the slogan “apartheid” (literally “apartness”)

will give brainliest help

Answers

Answer:

Drought, and it is due to floodwater and ground water drying up

Explanation:

Define a 'Natural Resource' in your own words.

Answers

Answer:

materials or substances that are sourced from the natural environment and are commonly used for economic gain.

Answer:

Natural resources are ANYTHING that occurs naturally and that can be used for the benefit of humans, though it may often be thought of as obscure at the time.

Explanation:

Natural resources are simply those resources which obtain from nature like wood; vegetable fruits; water; sunlight ;air and fuel etc . Natural resources can used directly and indirectly according to our needs.Natural Resources can be Renewable ( like wind energy; solar energy etc) and Non renewable. (like coal; petrol and gas etc).

Question 15 of 15
Oceanic crust slides under continental crust during subduction because
oceanic crust is
A. faster
B. denser
C. less dense
D. younger

Answers

Answer:

B. denser

Explanation:

In a convergence boundary where continental crust collides with an oceanic crust , the oceanic crust get subducted due to it more dense nature. The oceanic crust is denser because of the kind of rocks found in it. The oceanic crust is dominated by mafic rocks(basalt, Gabbro and Diabase) majorly,  Basalt. Generally, this kind of rocks are heavier than the rocks found in the continental crust(usually granitic) . This kind of rocks (mafic)contribute to it(oceanic crust) dense nature.  

Due to the dense nature of oceanic crust, when they collides with the more active continental crust they tend to subduct. The subduction zone causes an introduction of magma as aesthenosphere material are released through this zone . This zone is marked with volcanoes . The oceanic crust subduct to form trenches.

The picture above illustrate the colliding effects of a continental  and oceanic crust.  

Hope this helps you :)

The dust bowl occurred as a result of drought and poor farming practices. please select the best answer from the choices provided t f

Answers

Answer:

The right option is; a. True  

The Dust Bowl occurred as a result of drought and poor farming practices

The Dust Bowl is an environmental disaster that occurred in the Southern Plains region of the United States in the 1930s. The dust bowl was caused as a result of drought (severe water shortage) and a failure to apply proper farming practices to prevent wind erosion. Plants that kept the soil in place were destroyed by the severe drought. When high winds blew, chocking dust suffocated people and livestock were killed across the entire region.

Explanation:

Answer:

TRUEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Explanation:

PLS HELP ME I WILL MARK THE BRAINLIEST

Picture is for question 1.


1. Using this map, in which area would you be LEAST likely to find a substantial Aboriginal population? A) Central B) East Central C) North Central D) Southeast Coast


2.Inadequate access to job, physical assets, and rural development

Inadequate access to markets for goods and services

Low endowment of human capital Destruction of natural resource endowments


2. What major problem in Sub-Saharan Africa is being described? A) causes of Colonialism B) major causes of poverty C) major effects of disease D) major effects of the Cold War

Answers

Answer:

D, southeast coast.

Explanation:

k12 usatestprep

1. Option (D) is correct,   2. Option (B) is correct.

1. The Southeast Coast typically refers to the southeastern region of a country or continent. In many countries, such as Australia, this region is known for having a lower proportion of Aboriginal populations compared to other areas.

Therefore, the Southeast Coast is typically associated with lower Aboriginal population density and fewer substantial Aboriginal communities.

2. Sub-Saharan Africa faces numerous challenges that contribute to widespread poverty in the region.

These challenges include factors such as limited access to quality education, inadequate healthcare infrastructure, high levels of unemployment, political instability, corruption, unequal distribution of resources, and limited economic opportunities.

Thus, these factors, among others, contribute to the persistence of poverty and hinder socioeconomic development in the region.

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PLS HELP ME I WILL MARK THE BRAINLIEST

Picture is for question 1.

1. Using this map, in which area would you be LEAST likely to find a substantial Aboriginal population? A) Central B) East Central C) North Central D) Southeast Coast

2. What major problem in Sub-Saharan Africa is being described by Inadequate access to job, physical assets, and rural development, Inadequate access to markets for goods and services, low endowment of human capital and destruction of natural resource endowments?

A) causes of Colonialism B) major causes of poverty C) major effects of disease D) major effects of the Cold War

As a volcano erupts, what force pushes the magma out of the volcano and onto the surface?

A. expanding gases
B. compression
C. gravity
D. motion

Answers

a. expanding gases



the pressure they create makes them burst out basically

HELPPPPP!!!!! I need help quick (not a test btw)

Answers

Answer: A. Pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas.

The natural gas deposits formed is  pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas. Thus, the option (a) is correct.

What is the natural gas?

Natural gas is defined as gas formed from a combination of other gases, such as hydrocarbons, alkanes, and methane. The gases depend on the state of the atmosphere. Propane, pentane, ethane, hexane, and butane are all present in trace levels in natural gas. Carbon and hydrogen atoms combine to create the gas known as methane.

Phytoplankton and zooplankton are two different types of plankton that are related to both plants and animals. Natural gas are microscopic plankton in their natural forms. Sediment is the term used to describe plankton on materials that enter the ocean through rivers. Then, as this debris falls to the ocean floor, natural gas is created.

Therefore, option (a) is correct.

Learn more about on natural gas, here:

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Watch help video
In circle B with m ABC = 68 and AB = 4 units, find the length of arc AC.
Round to the nearest hundredth.

Answers

The length of an arc rounded to the nearest hundredth is 4.75units

How to calculate the length of an arc?

The formula for calculating the length of an arc is expressed as:

L = rtheta

where

r is the radius = AB = 4 units

theta is the central angle = <ABC = 68 degrees

Substitute

L = 4(68π/180)
L = 4.75units

Hence the length of an arc rounded to the nearest hundredth is 4.75units

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Physiological population density differs from crude population density in that physiological density

Answers

Answer:

Explanation:

Physiological population density differs from crude population density in that physiological density: a. Examines only the population of cities, while crude density includes the population of cities and rural areas.

which region in africa contains the highest population density?
O A
O B
O C
O D

Answers

Answer:

B

Explanation:

B is which region in africa contains the highest population density

summarize the functions of lipids in cell

can someone help me i need to answer this

Answers

Answer:

Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.

What made a commotion heard in three states along the southern mississippi river.

Answers

The answer to this is a meteor

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