ch 9 human impacts

Front

What is the normal pH of precipitation?

Back

5.6

Front

What desert do we have in the U.S.?

Back

Great Basin

Front

What is the difference between point source and non-point source pollution?

Back

Point source pollution comes from one location, while non-point source pollution comes from several small sources in an area and is harder to control.

Front

What does the greenhouse effect do?

Back

It uses gases to naturally warm up the planet.

Front

What are CFCs?

Back

CFCs are part of pollution that destroys the ozone layer.

Front

Define point source pollution.

Back

Pollution that comes from a single, identifiable source.

Front

Define non-point source pollution.

Back

Pollution that comes from multiple, diffuse sources.

Front

What is the role of the ozone layer?

Back

The ozone layer protects the Earth from harmful ultraviolet (UV) radiation.

Front

What are some human activities that contribute to air pollution?

Back

Burning fossil fuels, industrial emissions, and vehicle exhaust.

Front

What is acid rain?

Back

Rain that has a lower pH than normal due to pollutants in the atmosphere.