Answer:
Option C, REEFS IN PERIL
Explanation:
Peril word signifies threat or immediate danger.
Since the reefs are under threat of extinction. The best heading that can justify the endangered reef species is the "option C" i.e Reef in Peril.
However, the other heading like THE FUTURE OF THE REEFS, BENEATH THE AZURE WATERS LIES A LOST COLONY etc. are also apt but one would not be able to understand that here the author is talking about the reef in danger.
I think that it would be D
A dependent clause can be used as an adjective when it qualifies a noun or a pronoun or as an adverb when it qualifies another adverb, a verb, or an adjective.
while a dependent clause cannot stand alone as a sentence (unlike an independent clause) because of the presence of a subordinating conjunction, it may serve as either an adjective or an adverb.
Example- Ben is willing to try anything that will improve his condition.
that will improve his condition (adjective: qualifies "anything")
To learn more about dependent and independent clause from the given link
brainly.com/question/798413
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Answer:
its the last sentence and in the sixth sentance paragragh
