Earth's Atmosphere Review

Front

Which gas in our atmosphere is most abundant?

Back

Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78%.

Front

What percentage of our atmosphere is made up of other gases such as argon, carbon dioxide, methane, and helium?

Back

1% of Earth's atmosphere is made up of other gases.

Front

In what layer of Earth's atmosphere do meteors burn up?

Back

Meteors burn up in the Mesosphere.

Front

What is ozone?

Back

Ozone is a form of oxygen that consists of three oxygen atoms combined (O3).

Front

Which layer of Earth’s atmosphere is the one farthest from the surface of the Earth?

Back

The Exosphere is the layer farthest from the Earth's surface.

Front

What is the primary function of the stratosphere?

Back

The stratosphere contains the ozone layer, which protects Earth from harmful ultraviolet (UV) radiation.

Front

What is the troposphere?

Back

The troposphere is the lowest layer of Earth's atmosphere where weather occurs and where we live.

Front

What is the thermosphere known for?

Back

The thermosphere is known for its high temperatures and is where the auroras occur.

Front

What role does carbon dioxide play in the atmosphere?

Back

Carbon dioxide is a greenhouse gas that helps trap heat in the atmosphere, contributing to the greenhouse effect.

Front

What is the composition of Earth's atmosphere?

Back

Earth's atmosphere is composed mainly of nitrogen (78%), oxygen (21%), and trace amounts of other gases.