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.
Hope this helps
The correct answer is A) compound verb. A compound verb is one which consists of two parts. The compound verbs here are: 'wanted to go' and 'decided to visit'.
