"People must take action now to protect coral reefs by reducing pollution and emissions of noxious gases." An opinion is a statement that expresses a judgement or viewpoint. All of the other statements express facts, they can be proven to be true.
Answer:
You have to think about what you have to write
The answer is: "subject<span>–verb agreement".
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I think the answer is because of all the stuff and wars and everything that happened back then they would now make more food because of poverty