Question

the deep - sea vent hypothesis suggests that life began in hydrothermal vents primarily because they provided
○ chemical energy and rocky pores that helped build protocells.
○ a way for land animals to cool down.
○ plenty of sunlight for photosynthesis.
○ a calm, cold environment with very little energy

Explanation:

The Deep - Sea Vent Hypothesis is about the origin of life. Hydrothermal vents are in the deep sea, so there's no sunlight (ruling out the option about sunlight for photosynthesis). They are not related to land animals cooling down (ruling out that option). Hydrothermal vents are not calm and cold with little energy; they are rich in chemical energy. The correct option is the one that says they provided chemical energy and rocky pores that helped build protocells.

Answer:

A. Chemical energy and rocky pores that helped build protocells