Oil
most likely, it's coal
most likely, it's coal
Geothermal
most likely, it's coal
Most likely.
A battery.
As a source of energy.
nuclear
The source of energy for most organisms is chemical energy and sunlight.
fule fossile is the most used energy source
Photosystem II most likely evolved first because it provides the energy for producing ATP and passes its electrons to photosystem I.
The insects food source, for example, a plant would absorb energy from the sun and taking in the fact that a plant is the insects food source, it would most likely eat it and obtain the plants energy that it just obtained from the main energy source. The sun.