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Question:

Which of the following statements is NOT supported by the passage?

A People throwing trash in the ocean is the biggest problem for sea creatures.(B)
Explaination

Answers (A), (C), and (D) are all directly stated in the passage. Answer (B) is not supported by the passage because the author never states what causes the most harm or is the biggest problem; it was simply stated that there are multiple sources and types of pollution.