AP Environmental: Unit 9 Global Changes

Front

What happens to the pH of ocean water as it becomes more acidic?

Back

The pH of the water decreases.

Front

What do carbon dioxide and seawater combine to form?

Back

Carbonic acid.

Front

What was the largest single source of carbon dioxide emissions in the U.S. in 2016?

Back

The combustion of fossil fuels to generate electricity.

Front

Which of the following is not a human activity responsible for adding CO2, CH4, and N2O to the atmosphere?

Back

Cultural eutrophication.

Front

What causes oxygen gas in the lower stratosphere to split and form ozone molecules?

Back

Ultraviolet radiation.

Front

Define ocean acidification.

Back

Ocean acidification refers to the decrease in pH levels of the ocean due to the absorption of excess atmospheric CO2.

Front

What is the primary greenhouse gas emitted through human activities?

Back

Carbon dioxide (CO2).

Front

Explain the role of fossil fuels in climate change.

Back

Fossil fuels release significant amounts of CO2 when burned, contributing to the greenhouse effect and global warming.

Front

What is cultural eutrophication?

Back

Cultural eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

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.