Oceansby Mary King Hoff, Mary M. Rodgers
We have also found other ways to use--and misuse--oceans. For example, they have become a global dumping ground for our garbage. We have begun to catch fish in such great amount that there are fewer fish left to have babies. As a result, supplies of some kinds of fish are decreasing. Ships that transport oil have released their greasy cargo into the ocean, hurting many types of wildlife that depend on oceans for survival. People are studying these problems to find solutions.
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