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Oceans, the Environment and You

Question/Answer 1/4

Oceans cover about 71 percent of the Earth's surface, and contain some of the most extraordinary, complex ecosystems on the planet. But what is happening to our oceans, and what can we do to protect them? Take this quiz to find out.

Coral bleaching refers to:

(a) Professional divers cleaning and bleaching coral reefs for tourists

(b) The process by which reefs become whiter because coral polyps are expelling algae

(c) Coral gets "bleached" over time due to aging

Answer