1. what do you know about coral reefs? can you think of any famous one? 2. What are some threats to the would's oceans?

Explanation:

1) Coral reefs are underwater ecosystems which are formed of colonies of Coral Polyps, a Famous and well-known Coral Reef is the Great Barrier Reef, which is located off the coast of Queensland, Australia.

2) A couple of threats to the world's oceans include, Plastic Pollution, Global Warming and Acidification.

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explanation:

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