easy · SAT Reading & Writing
The study of deep-sea hydrothermal vents has revealed a unique ecosystem that does not rely on sunlight for energy. Instead, specialized bacteria perform chemosynthesis, converting minerals dissolved in the vent fluid into organic matter. This process supports a diverse array of life, including giant tube worms and blind shrimp, which have adapted to the crushing pressure and total darkness of the ____ environment. Which choice completes the text with the most logical and precise word or phrase?
- sunlit
- tropical
- ephemeral
- abyssal
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