Sediment from a pond on a remote island in the eastern part of Lake Michigan contains harmful substances, including DDT, a pesticide that was previously produced and utilized, not in the nearby areas of Michigan or the northern United States, but in the southern United States. No waste disposal has taken place on the island. The pond is situated at a height that prevents water from Lake Michigan from flowing into it. The statements above, if true, most strongly support which of the following hypotheses?

Answer Choices

Correct answer marked below

The waters of the pond are less polluted than those of Lake Michigan.

The DDT was transported to the island through atmospheric currents.

Correct

Banning pesticides like DDT does not benefit the ecosystem.

DDT is harmful to humans but not to other living organisms.

Levels of DDT in the soil of agricultural regions are too low to be detected.

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Explanation

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Official Explanation

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The key points in the statements indicate that the island pond is isolated from Lake Michigan and that no dumping has occurred there. The presence of DDT, a pesticide banned due to its harmful effects, suggests that it must have come from…

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Comments

PrathyooshFeb 19, 2025

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MuhammadJan 10, 2025

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DangJan 21, 2024

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VarnicaMar 13, 2025

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What this question tests

What it tests

Whether you can identify the option that most bolsters an argument's conclusion.

Common trap

Choosing an option that is consistent with the argument but adds no new support, or that shifts the topic.