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Flashcards on Structure of the Atmosphere
Click on the flashcard to see the answer
What is the main gas present in Earth's atmosphere?
Nitrogen
Which layer of the atmosphere is closest to Earth's surface?
Troposphere
What is the function of the ozone layer in the atmosphere?
To absorb harmful UV radiation from the Sun
Which layer of the atmosphere is responsible for auroras?
Ionosphere
What is the temperature like in the thermosphere?
Extremely high
What is the lowest layer of the atmosphere called?
Troposphere
What is the second most abundant gas in Earth's atmosphere?
Oxygen
Which layer of the atmosphere contains the ozone layer?
Stratosphere
What is the purpose of the mesosphere?
To protect Earth's surface from meteoroids
What is the highest layer of the atmosphere called?
Exosphere
What causes air pressure in the atmosphere?
The weight of the air above
Which layer of the atmosphere is where weather occurs?
Troposphere
What is the significance of the Exosphere?
It transitions into space and contains satellites
Which layer of the atmosphere is responsible for the Northern Lights?
Thermosphere
What percentage of the atmosphere is made up of trace gases?
Less than 1%
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Test Your Knowledge
What is the main gas present in Earth's atmosphere?
Nitrogen
Oxygen
Carbon Dioxide
Argon
Check Answers
Which layer of the atmosphere is responsible for the Northern Lights?
Troposphere
Stratosphere
Mesosphere
Thermosphere
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What causes air pressure in the atmosphere?
Clouds
The weight of the air above
Temperature
Wind
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Which layer of the atmosphere is closest to Earth's surface?
Thermosphere
Stratosphere
Troposphere
Mesosphere
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What is the function of the ozone layer in the atmosphere?
To absorb harmful UV radiation from the Sun
To generate heat
To produce oxygen
To store carbon dioxide
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What is the highest layer of the atmosphere called?
Troposphere
Stratosphere
Mesosphere
Exosphere
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What is the lowest layer of the atmosphere called?
Troposphere
Stratosphere
Mesosphere
Thermosphere
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What is the second most abundant gas in Earth's atmosphere?
Nitrogen
Oxygen
Carbon Dioxide
Helium
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What is the temperature like in the thermosphere?
Very cold
Extremely high
Moderate
Constant
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What percentage of the atmosphere is made up of trace gases?
5%
Less than 1%
10%
50%
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