ES Unit 8 - Air Pollution

Front

What are Chlorofluorocarbons (CFCs)?

Back

CFCs are man-made chemical compounds used in refrigeration, air conditioning, and aerosol propellants that deplete the ozone layer.

Front

What is air pollution?

Back

Air pollution refers to the presence of harmful substances in the atmosphere that can cause health problems and environmental damage.

Front

What is the difference between primary and secondary pollutants?

Back

Primary pollutants are emitted directly from a source, while secondary pollutants form through chemical reactions between primary pollutants and other substances.

Front

What is a chemical reaction in the context of air pollution?

Back

A chemical reaction in air pollution occurs when pollutants interact with other substances in the atmosphere, leading to the formation of secondary pollutants.

Front

What is the role of sunlight in air pollution?

Back

Sunlight can stimulate photochemical reactions that lead to the formation of secondary pollutants, such as ozone.

Front

How can planting trees help reduce carbon dioxide levels?

Back

Planting trees absorbs carbon dioxide during photosynthesis, thereby decreasing its concentration in the atmosphere.

Front

What is global warming?

Back

Global warming is the long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases.

Front

What are the potential effects of global warming?

Back

Global warming can lead to rising sea levels, increased frequency of extreme weather events, and changes in precipitation patterns.

Front

What is acid rain?

Back

Acid rain is precipitation that contains high levels of sulfuric and nitric acids, often resulting from industrial emissions.

Front

What is thermal inversion?

Back

Thermal inversion is a weather phenomenon where a layer of warm air traps pollutants close to the ground, preventing them from dispersing.