APES Unit 7

Front

What are greenhouse gases?

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect. Key examples include carbon dioxide, methane, and water vapor.

Front

What is acid rain?

Back

Acid rain is precipitation that has a lower pH than normal rainwater, typically due to pollutants like sulfur dioxide and nitrogen oxides.

Front

What are the effects of acid rain?

Back

Acid rain can damage drinking water sources, aquatic life, and architecture/buildings.

Front

What combines with other pollutants to form acid rain?

Back

Nitrogen oxides and sulfur dioxide combine with water vapor in the atmosphere to form acid rain.

Front

What is a primary air pollutant?

Back

A primary air pollutant is a substance directly emitted into the atmosphere that can harm human health or the environment, such as carbon monoxide and sulfur dioxide.

Front

Which of the following is NOT a primary air pollutant?

Back

Smog is not a primary air pollutant; it is a secondary pollutant formed from the reaction of primary pollutants.

Front

What pH level indicates acid precipitation?

Back

A pH level of 5.6 or lower indicates acid precipitation, with pH 4.1 being a clear example of acid rain.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

What are nitrogen oxides?

Back

Nitrogen oxides (NOx) are a group of gases that are produced from burning fossil fuels and can contribute to air pollution and acid rain.

Front

What is the role of sulfur dioxide in acid rain formation?

Back

Sulfur dioxide (SO2) is released from burning fossil fuels and can react with water vapor in the atmosphere to form sulfuric acid, contributing to acid rain.