Earth's Atmosphere

What is the layer of air around the Earth called?

• trophosphere

• atmosphere

• hemisphere

What is the purpose of the atmosphere?

• To provide weather.

• To allow planes to fly.

• Support life on earth, control weather and climate, provide gases plants and animals need.

• Atmosphere doesn't have a purpose

Tags

NGSS.MS-ESS2-6

Without Earth's atmosphere our planet would be

• too hot

• too cold

Earth's atmosphere is mostly made up of

• oxygen gas

• nitrogen gas

• argon gas

• carbon dioxide

The closest layer to Earth's surface is called the

• exosphere

• stratosphere

• troposphere

• thermosphere

Air molecules are the closest together (most dense)

• closer to Earth's surface

• closer to outer space

What is the name of the layer found in the stratosphere that absorbs harmful UV rays and protects us from too much solar radiation?

• troposphere

• atmosphere

• ozone layer

• ionosphere

Which layer of Earth's atmosphere is the coldest layer?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Which layer of the atmosphere is the "outer" layer that fades into space?

• troposphere

• stratosphere

• mesosphere

• exosphere

The gas particles in the exosphere are very

• close together/compact

• spread apart