5.3 Air Pollution

Front

What are primary pollutants?

Back

Primary pollutants are any type of pollutant that is directly emitted into the environment, such as carbon monoxide and sulfur dioxide.

Front

What is the role of greenhouse gases in the Earth's atmosphere?

Back

Greenhouse gases, in moderate amounts, help to keep the Earth's temperature stable by trapping heat.

Front

Give an example of a primary pollutant.

Back

An example of a primary pollutant is carbon monoxide.

Front

What is smog?

Back

Smog is a type of air pollution that results from chemical reactions involving sunlight, air, exhaust, and ozone.

Front

What does the Greenhouse Effect refer to?

Back

The Greenhouse Effect refers to the process by which greenhouse gases trap heat in the Earth's atmosphere, keeping the planet warm.

Front

What is acid rain?

Back

Acid rain is precipitation that contains high levels of sulfuric or nitric acids, often resulting from the emissions of sulfur dioxide and nitrogen oxides.

Front

What is ozone?

Back

Ozone is a gas composed of three oxygen atoms, found in the Earth's stratosphere, where it forms a layer that protects living organisms from harmful ultraviolet radiation.

Front

What are secondary pollutants?

Back

Secondary pollutants are not directly emitted but form in the atmosphere through chemical reactions, such as ozone and smog.

Front

What is the main source of carbon monoxide pollution?

Back

The main source of carbon monoxide pollution is the incomplete combustion of fossil fuels, often from vehicles.

Front

How does air pollution affect human health?

Back

Air pollution can lead to respiratory problems, cardiovascular diseases, and other health issues.