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Which of the following terms is the activity of growing crops and raising farm animals?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
Which of the following is a substance that makes chemical reactions take place faster?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
What ingredient in fertilizers can cause an overgrowth of algae?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
How has the human population on Earth changed during the last 50 years?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
Which of the following is an example of hazardous waste?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
Which term means using less material?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
The individuals of one species that occupy a specific area are called ___.
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
What is the largest source of water quality issues in the United States?
agriculture
non-point source pollution
a population
enzyme
nuclear waste
reduce
nitrogen
It increased.
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