Question

what is the source of energy for the life in deep ocean trenches where sunlight does not reach?​

Answer 1

Answer:

Instead of sunlight, vent life relies on hydrogen sulfide - more commonly known as rotten egg gas and toxic to most land-based life. In a process called chemosynthesis, specialized bacteria create energy from the hydrogen sulfide present in the mineral-rich water pouring out of the vents.

Deep sea creatures are not capable of photosynthesis since, as you mentioned, they do not have access to sunlight. Instead, some of them create their own food through chemosynthesis: oxidization of high-energy inorganic compounds (hydrogen gas, ammonia, nitrates, and sulfides).

The three main sources of energy and nutrients for deep sea communities are marine snow, whale falls, and chemosynthesis at hydrothermal vents and cold seeps.

Answer 2

ANSWER

• No sunlight reaches the deep ocean trenches and they get all of their energy from chemicals dissolved in the water.

• They get energy from Hydrogen Sulfide which is also present.

• It is a poisonous gas for land based living organisms.

• They also depend on Chemo synthesis.

• It is made by bacteria using chemicals dissolved as the energy source.

• This process takes place in the absence of sunlight.

• It takes place by the oxidization of high-energy inorganic compounds (hydrogen gas, ammonia, nitrates etc.)