On a Separate Sheet of Paper, Explain Why It Is Vital for People to Control Ocean Pollution

Name Date Class

Ocean Resources

On a separate sheet of paper, explain why it is vital for people to control ocean pollution.

167C

Name Date Class

Ocean Resources

1. How did the catches of these three fish change in the period shown?

2. Why do you think these changes might have occurred?

3. What can be done to protect fish populations?

Answer the following questions in the space provided.

4. What happens to the remains of dead marine organisms to transform
them into oil and gas?

5. Why must nations cooperate to reduce ocean pollution?

6. upwelling

7. nodules

167D

Name Date Class

Ocean Resources

Fishing on Georges Bank

1. What do the numbers on the graph’s vertical axis represent?

2. How many tons of groundfish were caught in 1960?

3. How many tons were caught in 1995?

4. How many fewer tons were caught in 1995 than in 1960?

5. When did the catch first fall below the 1960 level?

6. In late 1994, the U.S. National Marine Fisheries Service closed Georges
Bank to commercial fishing. Why do you think this was done?

167E

Name Date Class

Ocean Resources

If the statement is true, write true. If the statement is false, change the underlined word
or words to make the statement true.

1. People depend on ocean organisms for food.

2. Nonliving ocean resources include water, algae, and minerals.

3. Minerals and nutrients from deep in the ocean are brought to
the surface in cold water as a result of thermal pollution.

4. Fisheries renew themselves naturally each year, but overfishing
has caused a shortage of fish in some areas.

5. Fuels such as coal are created naturally over the course of
hundreds of millions of years from the remains of dead marine organisms.

Fill in the blank to complete each statement.

6. , the farming of salt- and freshwater organisms, is increasingly
common.

7. Although some ocean pollution is the result of natural occurrences, most pollution is
related to .

8. Metals on the ocean floor concentrate around pieces of shell, forming black lumps
called .

9. Fresh water can be produced by removing the salt from ocean water using a process
called .

10. from damaged tankers or drilling platforms can cause wide
destruction to living things in the ocean.