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Inferences SAT question
Reading and Writing · Information and Ideas · Easy · Answer it here, explanation included.
Microbes that live in shallow lakes and ponds produce methane, a harmful greenhouse gas. Ecologist Ralf Aben and his team wanted to see how different types of shallow-water plants might affect the amount of methane that escapes into the atmosphere. Aben’s team set up some water tanks with soil and microbes from local ponds. Some tanks had a type of underwater plant that grows in the soil called watermilfoil. Other tanks had either duckweed, a type of plant that floats on the water’s surface, or algae. Aben and his team found that tanks with duckweed and algae released higher levels of methane than tanks with watermilfoil did. This finding suggests that blank
Which choice most logically completes the text?
ExplanationShow
Choice A is the best answer. The passage tells us that “tanks with duckweed (a floating plant) and algae released higher levels of methane than tanks with watermilfoil (an underwater plant) did.” This suggests that the presence of some kinds of underwater plants like watermilfoil may help prevent methane from escaping shallow lakes and ponds.
Choice B is incorrect. The passage doesn’t mention deeper bodies of water at all, so there’s no basis for this inference. Choice C is incorrect. The passage doesn’t compare the likelihood of shallow lakes and ponds containing algae, watermilfoil, or duckweed. Choice D is incorrect. The study didn’t include any tanks with a mix of plants, so there’s no basis for this inference.
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