Atmosphere And Air Pressure Review
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Questions and Answers
- 1.
Which element is most abundant in Earth's atmosphere?
- A.
Oxygen
- B.
Nitrogen
- C.
Carbon
- D.
Helium
Correct Answer
B. NitrogenExplanation
Nitrogen makes up 78% of the atmosphereRate this question:
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- 2.
Which layer of Earth's atmosphere contains a majority of the clouds?
- A.
Troposphere
- B.
Stratosphere
- C.
Mesosphere
- D.
Thermosphere
Correct Answer
A. TroposphereExplanation
The troposphere is the layer of Earth's atmosphere closest to the surface. It is where weather occurs and where the majority of clouds are found. This layer is characterized by decreasing temperature with increasing altitude, which allows for the formation of clouds due to the condensation of water vapor. The other layers of the atmosphere, including the stratosphere, mesosphere, and thermosphere, do not contain as many clouds as the troposphere.Rate this question:
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- 3.
Airplanes fly in which layer(s) of the atmosphere?
- A.
Stratosphere
- B.
Troposphere and stratosphere
- C.
Stratosphere and mesophere
- D.
Mesosphere and troposphere
Correct Answer
B. Troposphere and stratosphereExplanation
Airplanes fly in the troposphere and stratosphere layers of the atmosphere. The troposphere is the lowest layer of the atmosphere, extending from the Earth's surface up to about 10-15 kilometers. This is where weather phenomena occur and where most commercial airplanes fly. The stratosphere is the layer above the troposphere, extending from about 10-15 kilometers up to about 50 kilometers. It contains the ozone layer and provides stable conditions for long-distance flights. Therefore, airplanes operate in both the troposphere and stratosphere layers of the atmosphere.Rate this question:
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- 4.
Which layer of the atmosphere protects us from meteors?
- A.
Ionosphere
- B.
Stratosphere
- C.
Troposphere
- D.
Mesosphere
Correct Answer
D. MesosphereExplanation
The mesosphere is the layer of the atmosphere that protects us from meteors. Meteors burn up upon entering the Earth's atmosphere due to the high temperatures caused by friction with the gases in the mesosphere. This layer is located above the stratosphere and below the thermosphere. It is characterized by low temperatures and is the layer where most meteors disintegrate before reaching the Earth's surface. Therefore, the mesosphere acts as a shield, preventing meteors from causing any significant damage to the Earth.Rate this question:
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- 5.
As altitude increases, the air pressure...
- A.
Decreases
- B.
Does not change
- C.
Stays the same
- D.
Increases
Correct Answer
A. DecreasesExplanation
As altitude increases, the air pressure decreases. This is because as you go higher in the atmosphere, there are fewer air molecules above you exerting pressure. The weight of the air above decreases, leading to a decrease in air pressure. This is why it is harder to breathe at higher altitudes, as the lower air pressure means there is less oxygen available.Rate this question:
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- 6.
A man hiked to the top of Mount Rogers, the highest point in Virginia. As he climbed, what happened?
- A.
The thermal energy was increasing
- B.
The altitude of the mountain was decreasing
- C.
The temperature of the atmosphere was decreasing
- D.
The pressure of the atmosphere was increasing
Correct Answer
C. The temperature of the atmosphere was decreasingExplanation
As the man hiked to the top of Mount Rogers, the highest point in Virginia, the temperature of the atmosphere was decreasing. This is because temperature generally decreases with an increase in altitude. As the man climbed higher, he reached a colder region of the atmosphere where the temperature was lower than at the base of the mountain.Rate this question:
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- 7.
What would be the forecast for an area experiencing high barometric pressure?
- A.
Sunny
- B.
Stormy
- C.
Rainy
- D.
Windy
Correct Answer
A. SunnyExplanation
High barometric pressure is typically associated with clear and stable weather conditions. This is because high pressure systems usually bring sinking air, which inhibits cloud formation and precipitation. As a result, the forecast for an area experiencing high barometric pressure would be sunny.Rate this question:
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- 8.
A low reading on a barometer is associated with what?
- A.
Stormy weather
- B.
Dry weather
- C.
Hot weather
- D.
Fair weather
Correct Answer
A. Stormy weatherExplanation
A low reading on a barometer indicates a decrease in atmospheric pressure. This decrease in pressure is typically caused by the approach of a storm system, which is associated with stormy weather. Therefore, a low reading on a barometer is a reliable indicator of impending stormy weather.Rate this question:
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- 9.
The layers of the atmosphere are classified according to what?
- A.
Altitude
- B.
Temperature
- C.
Humidity
- D.
Air pressure
Correct Answer
B. TemperatureExplanation
The layers of the atmosphere are classified according to temperature. As you move up in the atmosphere, the temperature changes in different layers. The layers are named based on these temperature variations, such as the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has its own unique characteristics and temperature patterns, which play a significant role in determining the behavior of weather and climate systems.Rate this question:
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- 10.
Carbon dioxide trapping heat in the atmosphere is known as what?
- A.
The ozone layer
- B.
Pollution
- C.
The greenhouse effect
- D.
Smog
Correct Answer
C. The greenhouse effectExplanation
The correct answer is the greenhouse effect. This is the process in which carbon dioxide and other greenhouse gases trap heat in the Earth's atmosphere, causing the planet to warm up. The greenhouse effect is responsible for the Earth's average temperature being suitable for life as we know it.Rate this question:
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Quiz Review Timeline +
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Current Version
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Feb 10, 2023Quiz Edited by
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Jan 13, 2018Quiz Created by
Dingram
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