Question

\deep sea vents\ are hydrothermal vents. since there is no light at the bottom of the ocean, hydrothermal vents get their energy from what process? photosynthesis chemosynthesis

Explanation:

Photosynthesis requires light, which is absent at the ocean bottom. Chemosynthesis uses chemical energy (like from hydrogen sulfide) instead of light. Hydrothermal vents have chemosynthetic bacteria that convert inorganic compounds into organic matter for energy.

Answer:

chemosynthesis