Unit 2 LS2 Atmosphere and Carbon Cycle Impact on Climate Change

Which gas makes up most of Earth's atmosphere?

• oxygen

• nitrogen

• methane

• carbon dioxide

Which of the following is true about Earth's atmosphere?

• It protects thee planet like a blanket on a bed

• It keeps the Earth warm at night

• It protects Earth's surface from meteors from space

• All of the choices.

Weather on Earth takes place in the...

• exosphere.

• thermosphere.

• troposphere.

• stratosphere.

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Which two gases make up most of Earth's atmosphere? (choose two!)

• nitrogen

• carbon dioxide

• oxygen

• argon

Which two gases are the most important in the troposphere? (choose two!)

• water vapor

• argon

• carbon dioxide

• methane

Carbon is important because...

• it is part of the carbon cycle.

• it makes up every living thing on the planet!

• it is closely related to oxygen and can be used in breathing.

• it makes up most of our atmosphere.

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NGSS.MS-LS2-3

Where can carbon be found in the carbon cycle?

• photosynthesis

• combustion

• decay (decomposition)

• all of the choices.

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NGSS.MS-LS2-3

One process that put more carbon into the atmosphere is...

• redox reactions.

• combustion (burning things).

• photosynthesis.

• nuclear fusion.

One process that takes carbon out of the atmosphere is...

• redox reactions.

• combustion (burning things).

• photosynthesis.

• nuclear fusion.

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Processes that make up the carbon cycle:

• taking carbon from the atmosphere (photosynthesis)

• putting carbon into the atmosphere (respiration, decomposition, combustion)

• storing carbon (formation of fossil fuels and carbonite limetsone)

• All of the choices

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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