Front

This gas makes up 21% of the atmosphere

Back

oxygen

Front

This gas makes up 78% of the atmosphere

Back

nitrogen

Front

Order the atmosphere layers from Earth to space: troposphere, stratosphere, mesosphere, thermosphere, exosphere.

Back

troposphere, stratosphere, mesosphere, thermosphere, exosphere

Front

This layer of the atmosphere contains the ozone: troposphere, thermosphere, mesosphere, stratosphere

Back

stratosphere

Front

Which layer of the atmosphere is where weather occurs?

Back

troposphere

Front

The _______ in the Stratosphere protects us from harmful UV rays.

Back

ozone

Front

This process keeps Earth's temperature suitable for life.

Back

Greenhouse Effect

Front

Why is the ozone layer important?

Back

It absorbs ultraviolet radiation

Front

Why is the increase of Greenhouse gasses a big issue?

Back

It causes climate change and increase in the global temperature.

Front

The ozone layer protects us from

Back

UV rays