medium · LSAT Logical Reasoning
Biologist: Coral reefs near the new offshore wind farm have shown markedly faster growth than reefs elsewhere along the coast since the turbines were installed. We conclude that the turbines' foundations, by providing hard surfaces for coral larvae to settle on, are accelerating reef growth.
Which one of the following, if true, most strengthens the biologist's conclusion?
- Water temperature, nutrient levels, and pollution near the wind farm are the same as along the rest of the coast.
- Offshore wind farms generate electricity with far lower carbon emissions than comparable coal-fired power plants.
- Coral reefs around the world have been declining steadily, in many regions sharply, for several decades now.
- The turbines occasionally cause low-frequency vibrations that are detectable by various nearby marine mammals.
- Fishing boats now avoid the area immediately around the wind farm's turbines, where they once trawled freely.
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