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Earth's Atmosphere Layers and Characteristics

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Earth's Atmosphere Layers and Characteristics

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Questions and Answers

What percentage of Earth's atmosphere is made up of nitrogen and oxygen?

90%

78%

100%

99% (correct)

Which of the following is NOT a way that thermal energy is transferred in Earth's atmosphere?

Convection

Evaporation (correct)

Radiation

Conduction

What is the top-most layer of Earth's atmosphere called?

Stratosphere

Mesosphere

Troposphere

Exosphere (correct)

What is the purpose of Earth's atmosphere?

All of the above Signup and view all the answers

What causes wind in Earth's atmosphere?

The movement of air Signup and view all the answers

What happens when a hot air mass begins to rise into the atmosphere?

A mass of cooler, denser air moves in to replace it Signup and view all the answers

What is the primary factor that affects the amount of water vapor in the air?

Air temperature Signup and view all the answers

Which of the following gases occur naturally in Earth's atmosphere?

Both (a) and (c) Signup and view all the answers

What is the primary cause of increasing greenhouse gas emissions and rising global temperatures?

Human activities like burning fossil fuels Signup and view all the answers

What is the term used to refer to the particles of solids and liquids floating in the atmosphere?

Aerosols Signup and view all the answers

Which layer of the atmosphere is described as the lowest layer, where clouds and weather occur?

Troposphere Signup and view all the answers

How can you convert kilometers to an approximation of miles?

Divide by 2 and add 10% Signup and view all the answers