Chapter 7 review

Some examples of fossil fuels are:

• coal, oil and plastic

• coal, oil and natural gas.

• coil, oil and paper.

Greenhouse gases are:

• oxygen, carbon dioxide and methane.

• oxygen, carbon dioxide and natural gas.

• oxygen, air and methane.

Climate change means...

• that Earth's climate is not the same as before.

• that Earth's climate is the same as before.

Human impact is the actions of pets that affect the environment.

• True

• False

_____________ is the presence, or dumping, of substances in the environment that harm it.

• Human impact

• Pollution

• deforestation

Some types of pollution are:

• air, soil and plastic pollution.

• air, water and soil pollution.

• foam, air and water pollution.

It takes 30 days for paper to decompose.

• True

• False

It takes indefinite time for polystyrene foam to decompose.

• True

• False.

________ means tree felling.

• Wetland

• Overload of the terrain

• Deforestation

_____________ of habitats is when conditions are suitable for the survival of life-forms are eliminated or put at risk.

• Construction

• Destruction