Unit 5 Test

True or false:

Nature’s most violent storms are tornadoes.

• TRUE

• FALSE

True or false:

Pollutants are harmful substances found in the environment.

• TRUE

• FALSE

True or false:

Many dangerous wastes are pumped down wells.

• TRUE

• FALSE

True or false:

Droughts occur suddenly and damage plants, animals, and humans.

• TRUE

• FALSE

True or false:

Tropical rain forests cover half the earth’s surface.

• TRUE

• FALSE

True or false:

Most pollution is caused by human activities.

• TRUE

• FALSE

True or false:

Anything that burns a fossil fuel such as coal, oil, or natural gas adds to air pollution.

• TRUE

• FALSE

True or false:

Natural resources are naturally occurring things that are found on Earth.

• TRUE

• FALSE

True or false:

The greenhouse effect is a slow warming of the earth caused by burning fossil fuels.

• TRUE

• FALSE

True or false:

The change in climate due to time is called vertical zonation.

• TRUE

• FALSE