Oceans are full of life, from tiny ____ to large animals. They support ____ and help people by producing oxygen and keeping the climate stable. But plastic can break into ____ that animals may eat. Another problem is ____ , which reduces fish numbers. Fishing can also cause ____ , when turtles or dolphins are caught by accident. Warmer seas and ____ can damage reefs and lead to coral bleaching. Pollution may cause an ____ and create a ____ with low oxygen.plankton; biodiversity; microplastics; overfishing ____ ____ ____ ____ ____ ____ ____ ____

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