Layers Of Atmosphere Test Quiz!
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Questions and Answers
- 1.
Which of the following would be the most abundant atmospheric component?
- A.
Oxygen
- B.
Carbon dioxide
- C.
Nitrogen
- D.
Argon
Correct Answer
C. NitrogenExplanation
Nitrogen would be the most abundant atmospheric component because it makes up about 78% of Earth's atmosphere. Oxygen, carbon dioxide, and argon are also present in the atmosphere, but in much smaller quantities compared to nitrogen.Rate this question:
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- 2.
When scientists issue an alert about harmful levels of high ozone, what level of the atmosphere are they concerned about?
- A.
Troposphere
- B.
Stratosphere
- C.
Mesosphere
- D.
Thermosphere
Correct Answer
B. StratosphereExplanation
Scientists are concerned about the stratosphere when issuing an alert about harmful levels of high ozone. The stratosphere is the layer of the Earth's atmosphere located above the troposphere, where most weather occurs. It contains the ozone layer, which helps to protect the Earth from harmful ultraviolet radiation. High levels of ozone in the stratosphere can lead to negative effects such as increased risk of skin cancer and damage to ecosystems.Rate this question:
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- 3.
Which of the following statements would be FALSE?
- A.
The Earth's atmosphere has changed naturally over time
- B.
The Earth's atmosphere does not change
- C.
Human activities have caused significant changes in the Earth's atmosphere
- D.
Living things must adapt to changes within the Earth's atmosphere
Correct Answer
B. The Earth's atmosphere does not changeExplanation
The given correct answer is that the statement "The Earth's atmosphere does not change" would be FALSE. This is because the Earth's atmosphere is constantly changing due to various natural processes such as volcanic activity, weather patterns, and the cycling of gases. Additionally, human activities, such as the burning of fossil fuels, have also caused significant changes in the Earth's atmosphere, leading to issues such as climate change and air pollution. Living things, including humans, must adapt to these changes in order to survive and thrive in the Earth's dynamic atmosphere.Rate this question:
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- 4.
Scientists from the EPA (Environmental Protection Agency) are concerned about air quality. Which substance that is found to be present in the atmosphere, would provide evidence of poor air quality?
- A.
Argon
- B.
Oxygen
- C.
Nitrogen
- D.
CFC's
Correct Answer
D. CFC'sExplanation
CFC's, or chlorofluorocarbons, would provide evidence of poor air quality. CFC's are synthetic compounds that are commonly used in refrigerants, aerosol propellants, and solvents. They have been found to contribute to the depletion of the ozone layer and are considered harmful to the environment. Therefore, the presence of CFC's in the atmosphere indicates poor air quality and potential environmental damage.Rate this question:
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- 5.
Why does the troposphere experience the greatest amount of atmospheric pressure compared to the other atmospheric layers?
- A.
It produces the ozone layer
- B.
It has the highest temperatures
- C.
It contains a high concentration of gas particles
- D.
It is the region in which weather occurs
Correct Answer
C. It contains a high concentration of gas particlesExplanation
The troposphere experiences the greatest amount of atmospheric pressure compared to the other atmospheric layers because it contains a high concentration of gas particles. The weight of the air above exerts pressure on the air below, and since the troposphere is closest to the Earth's surface, it has a greater amount of air above it, resulting in higher atmospheric pressure.Rate this question:
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- 6.
Which of the following is the only list representing natural components of the atmosphere?
- A.
Dust, argon, smog
- B.
Pollen, oxygen, carbon dioxide
- C.
Pollen, sulfuric acid, smog
- D.
Dust, oxygen, sulfuric acids
Correct Answer
B. Pollen, oxygen, carbon dioxideExplanation
The correct answer is pollen, oxygen, carbon dioxide. Pollen is a natural component of the atmosphere as it is produced by plants for reproduction. Oxygen is also a natural component and is essential for respiration. Carbon dioxide is another natural component that is produced by living organisms through respiration and is also released during natural processes such as volcanic eruptions.Rate this question:
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- 7.
What is the relationship between altitude and air density within the Earth's atmosphere?
- A.
As altitude increases, air density decreases
- B.
As altitude increases, air density increases
- C.
As altitude increases, air density remains the same
- D.
There is no relationship between altitude and air density with the Earth's atmosphere
Correct Answer
A. As altitude increases, air density decreasesExplanation
As altitude increases, the pressure exerted by the atmosphere decreases. This decrease in pressure causes the air molecules to spread out, resulting in a decrease in air density. Therefore, as altitude increases, air density decreases.Rate this question:
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- 8.
Which layer of the atmosphere is best described by the following: a layer of the atmosphere where weather occurs, has the highest air pressure and density?
- A.
Troposphere
- B.
Stratosphere
- C.
Mesophere
- D.
Exosphere
Correct Answer
A. TroposphereExplanation
The troposphere is the layer of the atmosphere closest to the Earth's surface. It is where weather occurs and has the highest air pressure and density compared to the other layers. The temperature decreases with altitude in this layer.Rate this question:
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- 9.
Which layer of the atmosphere fits the description below: sits on the edge of space, lowest air pressure and density
- A.
Troposphere
- B.
Meosphere
- C.
Thermosphere
- D.
Exosphere
Correct Answer
D. ExosphereExplanation
The exosphere is the layer of the atmosphere that fits the description given. It is the outermost layer of the atmosphere, sitting on the edge of space. It has the lowest air pressure and density compared to the other layers.Rate this question:
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- 10.
Why does the troposphere experience the greatest amount of atmospheric pressure compared to the other atmospheric layers?
- A.
It produces the ozone layer
- B.
It has the highest temperatures
- C.
It contains a high concentration of gas particles
- D.
It is the region in which weather occurs
Correct Answer
C. It contains a high concentration of gas particlesExplanation
The troposphere experiences the greatest amount of atmospheric pressure compared to the other atmospheric layers because it contains a high concentration of gas particles. The weight of the air above exerts pressure on the air below, and since the troposphere is closest to the Earth's surface, it has the highest concentration of gas particles and therefore experiences the highest atmospheric pressure.Rate this question:
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- 11.
What's the name of the lower atmosphere that contains the greenhouse gases?
- A.
Mesosphere
- B.
Troposphere
- C.
Exosphere
- D.
Atmosphere
Correct Answer
B. TroposphereExplanation
The correct answer is Troposphere. The troposphere is the lowest layer of the Earth's atmosphere and is where weather occurs. It extends from the Earth's surface up to about 10-15 kilometers. This layer contains the greenhouse gases, such as carbon dioxide and methane, which trap heat and contribute to the greenhouse effect.Rate this question:
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- 12.
What do greenhouse gases do in our atmosphere?
- A.
These gases absorb the sun heat & emits radiant energy
- B.
These gases keep all the air within the Earth
- C.
Increases the Earth's temperature
- D.
It makes the Earth cooler
Correct Answer
A. These gases absorb the sun heat & emits radiant energyExplanation
Greenhouse gases, such as carbon dioxide and methane, have the ability to absorb heat from the sun and then emit radiant energy. This process is known as the greenhouse effect. When these gases accumulate in the atmosphere, they trap heat and prevent it from escaping into space, thus increasing the Earth's temperature. This phenomenon is responsible for global warming and climate change.Rate this question:
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