Earth's Composition and Layers Review

Front

What are the two main gases that make up 99% of our atmosphere?

Back

Oxygen and Nitrogen.

Front

What is the percentage of nitrogen in the atmosphere?

Back

78%.

Front

Which layer of the atmosphere contains the gas ozone?

Back

Stratosphere.

Front

What is the percentage of oxygen in the atmosphere?

Back

21%.

Front

Which gas makes up 78% of our atmosphere?

Back

Nitrogen.

Front

What is the primary function of the ozone layer?

Back

To protect the Earth from harmful ultraviolet (UV) radiation.

Front

What is the composition of the atmosphere primarily made of?

Back

Gases, mainly nitrogen (78%) and oxygen (21%).

Front

What is the role of carbon dioxide in the atmosphere?

Back

It helps regulate Earth's temperature through the greenhouse effect.

Front

What is the exosphere?

Back

The outermost layer of the Earth's atmosphere, where satellites orbit.

Front

What is the thermosphere?

Back

A layer of the atmosphere characterized by high temperatures and the presence of ionized gases.