Question

6 read the following sentence: \around a quarter of all marine species live in coral reefs, and they play an important role in supporting diversity in the ocean.\ what does the word diversity mean? a many different kinds of things b a serious threat to ocean life c a hard outer layer than protects coral d something that can be seen from outer space 7 choose the answer that best completes the sentence below. the great barrier reef is the largest coral reef on earth; ____, it may disappear within your lifetime. a consequently b before c as an illustration d however

Explanation:

For question 6, "diversity" refers to a variety or many different kinds of things. In the context of marine species in coral reefs, it means a wide - range of different species. For question 7, the first part of the sentence states a positive fact about the Great Barrier Reef (it's the largest), and the second part states a negative fact (it may disappear), so a contrasting word is needed. "However" is used to show contrast.

Answer:

1. A. many different kinds of things
2. D. however