Process in which chemical energy, instead of sunlight is used to make food

Chemosynthesis, I believe. Bacteria at the bottom of the ocean use this process for food.

Where are they though?

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.