Env. Unit 3b Test

Front

What is the greenhouse effect?

Back

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

Front

What are greenhouse gases?

Back

Greenhouse gases are gases that trap heat in the atmosphere, including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

Front

What is the main cause of the greenhouse effect?

Back

The main cause of the greenhouse effect is the increased use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the atmosphere.

Front

What is acid rain?

Back

Acid rain is precipitation that is significantly more acidic than normal, primarily caused by the emission of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere.

Front

What are the primary pollutants that cause acid rain?

Back

The primary pollutants that cause acid rain are sulfur dioxide (SO2) and nitrogen oxides (NOx).

Front

What is point-source pollution?

Back

Point-source pollution is pollution that comes from a single, identifiable source, such as a factory or sewage treatment plant.

Front

What is an example of point-source pollution?

Back

An example of point-source pollution is a factory dumping waste materials directly into a river.

Front

What is the largest source of freshwater on Earth?

Back

The largest source of freshwater on Earth is glaciers and ice caps.

Front

What percentage of Earth's freshwater is stored in glaciers and ice caps?

Back

About 68.7% of Earth's freshwater is stored in glaciers and ice caps.

Front

What is the Kyoto Protocol?

Back

The Kyoto Protocol is an international treaty that commits its parties to reduce greenhouse gas emissions, based on the premise that global warming exists and human-made CO2 emissions have caused it.