Composition of the Atmosphere

Front

What is the composition of the atmosphere?

Back

The atmosphere is composed of gases, water vapor, dust, and pollen.

Front

What is the most abundant gas in Earth's atmosphere?

Back

Nitrogen, which makes up about 78% of the atmosphere.

Front

What percentage of Earth's atmosphere is oxygen?

Back

Oxygen makes up about 21% of the atmosphere.

Front

What is the role of water vapor in the atmosphere?

Back

Water vapor is essential for weather processes and contributes to the greenhouse effect.

Front

What are the three key components of air?

Back

The three key components of air are nitrogen, oxygen, and argon.

Front

Which layer of the atmosphere is closest to Earth's surface?

Back

The Troposphere is the layer closest to Earth's surface.

Front

What happens to air pressure as you go higher in the atmosphere?

Back

Air pressure decreases as altitude increases.

Front

What is the exosphere?

Back

The exosphere is the outermost layer of the atmosphere, where the atmosphere transitions into outer space.

Front

What is the significance of the ozone layer?

Back

The ozone layer protects life on Earth by absorbing harmful ultraviolet (UV) radiation from the sun.

Front

What is the stratosphere?

Back

The stratosphere is the layer of the atmosphere above the troposphere, characterized by a temperature increase with altitude.