Chapter 21; 7 Words

Question 1

Pollution

Answer 1

• an unwanted change in the environment caused by substances or forms of energy

Question 2

Renewable resource

Answer 2

• a natural resource that can be replaced at the same rate at which it is consumed

Question 3

Nonrenewable resource

Answer 3

• a resource that forms at a rate that is much slower than the rate of consumed

Question 4

Overpopulation

Answer 4

• the presence of too many individuals in an area for the available resources

Question 5

Biodiversity

Answer 5

• the number and variety of organisms in a given area during a specific period of time

Question 6

Conservation

Answer 6

• the preservation and wise use of natural resources

Question 7

Recycling

Answer 7

• the presence of recovering valuable or useful materials from waste or scrap