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Atmosphere as a System

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Questions and Answers

What percentage of the atmosphere is composed of nitrogen?

0.03%

0.93%

78.09% (correct)

20.95%

Which gas in the atmosphere absorbs long-wave radiation from the Earth?

Oxygen (O₂)

Argon (Ar)

Carbon dioxide (CO₂) (correct)

Water vapour (H₂O)

What is the main function of the ozone layer in the atmosphere?

To regulate Earth's temperature

To store water vapour

To absorb incoming ultraviolet radiation (correct)

To reflect incoming radiation

Which layer of the atmosphere is found above 100 km above the Earth's surface?

Thermosphere Signup and view all the answers

What is the upper boundary of the troposphere called?

Tropopause Signup and view all the answers

What is the name of the region in the atmosphere where the gases are in a fixed mixture?

Homosphere Signup and view all the answers

What is the primary function of the insolation input in the atmosphere?

To bring heat energy into the atmosphere Signup and view all the answers

What type of gases are present in the atmosphere in relatively constant proportions?

Constant gases Signup and view all the answers

What is the term for the sphere of gases, liquids, and suspended particles that surrounds the Earth?

Atmosphere Signup and view all the answers

What is the primary function of the atmosphere in terms of heat?

To allow just enough heat through during the day to sustain life Signup and view all the answers

What is the term for the process by which plants release oxygen into the atmosphere?

Photosynthesis Signup and view all the answers

What is the term for the particles from space that enter the Earth's atmosphere?

Particles from space Signup and view all the answers