Earth's Atmosphere Layers

Uppermost layer of Earth's atmosphere

• thermosphere

• mesosphere

• stratosphere

• troposphere

What is the hottest layer in the atmosphere?

• Ionosphere

• Stratosphere

• Thermosphere

• Mesosphere

Some jet airplanes fly in a layer of the atmosphere where temperature generally (mostly) increases with altitude. What is this layer of the atmosphere?

• mesosphere

• stratosphere

• thermosphere

• troposphere

Which layer is the farthest from Earth?

• Mesosphere

• Stratosphere

• Thermosphere

• Exosphere

As you go higher in the troposphere, the temperature _______________.

• decreases

• increases

• stays the same

What absorbs ultraviolet rays in the atmosphere?

• troposphere

• stratosphere

• ozone layer

• greenhouse gases

This protects us from harmful UV rays from the sun

• Troposphere

• Stratosphere

• Greenhouse Effect

• Ozone Layer

The coldest layer.

• troposphere

• thermosphere

• exosphere

• mesosphere

What happens to the air pressure the higher up in space you go?

• the air pressure increases

• the air pressure decreases

• the air pressure stays the same

• there is no air pressure

Which layer has the highest pressure?

• thermosphere

• stratosphere

• troposphere

• ionosphere