APES Unit 7 Review

Front

Why has atmospheric carbon increased in recent history?

Back

Increase in consumption of fossil fuels.

Front

What is the major pollutant that electrostatic precipitators are designed to remove from power-plant smokestack emissions?

Back

Particulates.

Front

What is a protective gas in the stratosphere, but a pollutant in the troposphere?

Back

Ozone.

Front

What describes air pollutants that form from the direct combustion of fossil fuels?

Back

Primary pollutants.

Front

What do thermal inversions do?

Back

Trap high concentrations of pollution at ground level.

Front

What is the primary source of increased atmospheric carbon?

Back

Fossil fuel combustion.

Front

What are the effects of increased levels of particulates in the air?

Back

Respiratory issues and reduced visibility.

Front

What is the role of ozone in the stratosphere?

Back

Protects Earth from harmful UV radiation.

Front

What is the difference between primary and secondary pollutants?

Back

Primary pollutants are emitted directly; secondary pollutants form from reactions in the atmosphere.

Front

What is smog and how is it formed?

Back

A type of air pollution that forms from the interaction of sunlight with pollutants.