Earth's Atmosphere

Front

What is the mesosphere?

Back

The mesosphere is a layer of Earth's atmosphere that is extremely cold, located above the stratosphere and below the thermosphere.

Front

What contributes the most to carbon emissions globally?

Back

Burning fossil fuels contributes the most to carbon emissions globally.

Front

What are harmful substances in air, water, or soil called?

Back

Pollutants are harmful substances in air, water, or soil.

Front

What gas makes up 21% of Earth's atmosphere?

Back

Oxygen makes up 21% of Earth's atmosphere.

Front

Does temperature decrease as you increase with altitude in the stratosphere?

Back

False. In the stratosphere, temperature actually increases with altitude.

Front

What is the primary function of the ozone layer?

Back

The ozone layer protects Earth from harmful ultraviolet (UV) radiation from the sun.

Front

What is the troposphere?

Back

The troposphere is the lowest layer of Earth's atmosphere where weather occurs and where most of the atmosphere's mass is found.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the process by which certain gases trap heat in the atmosphere, keeping the Earth warm.

Front

What is the main component of Earth's atmosphere?

Back

Nitrogen is the main component of Earth's atmosphere, making up about 78%.

Front

What is air pressure?

Back

Air pressure is the force exerted by the weight of air above a given point, decreasing with altitude.