Air Around Us

Front

What is the Water Cycle?

Back

The Water Cycle is the continuous process by which water moves through the environment, involving evaporation, condensation, precipitation, and accumulation.

Front

What layer of the atmosphere is closest to Earth's surface and where weather occurs?

Back

The Troposphere is the layer of the atmosphere where weather occurs and contains all life.

Front

What gas makes up 78% of the atmosphere?

Back

Nitrogen is the gas that makes up 78% of the atmosphere.

Front

What instrument is used to measure air pressure?

Back

A Barometer is the tool used to measure air pressure.

Front

What gas makes up 21% of the atmosphere?

Back

Oxygen is the gas that makes up 21% of the atmosphere.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into water vapor and enters the atmosphere.

Front

What is condensation?

Back

Condensation is the process by which water vapor cools and changes back into liquid water, forming clouds.

Front

What is precipitation?

Back

Precipitation is any form of water, such as rain, snow, sleet, or hail, that falls from clouds to the Earth's surface.

Front

What is accumulation in the Water Cycle?

Back

Accumulation is the process where water collects in bodies of water like rivers, lakes, and oceans.

Front

What is the role of the Stratosphere?

Back

The Stratosphere is the layer of the atmosphere above the Troposphere, containing the ozone layer that protects Earth from harmful UV radiation.