Layers of the Atmosphere

Front

What is the hottest layer of the atmosphere?

Back

Thermosphere

Front

What happens to air pressure as altitude increases?

Back

Air pressure decreases.

Front

Why is the ozone layer important for life on Earth?

Back

It shields the Earth from ultraviolet (UV) rays from the sun.

Front

What is the greenhouse effect?

Back

The process of the atmosphere trapping the sun's radiation, making the Earth warm and livable for humans.

Front

What happens to density as altitude increases?

Back

Density decreases.

Front

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

Back

Troposphere.

Front

What is the main component of the atmosphere?

Back

Nitrogen (approximately 78%).

Front

What layer contains the ozone layer?

Back

Stratosphere.

Front

What is the boundary between the troposphere and the stratosphere called?

Back

Tropopause.

Front

What is the role of the mesosphere?

Back

It protects the Earth from meteoroids by burning them up.