Question

_____ is the main energy source for all life on earth. Chlorophyll Water Sunlight Nitrogen

Answer 1

Every living thing requires water, but this is a trick answer. Water is not an energy source. The correct answer is Sunlight.

Answer 2

Answer: Sunlight

Sunlight is the main source of energy for all life forms on earth. It is trapped by the green plants and other autotrophic organisms in order to conduct the process of photosynthesis. In photosynthesis, the light energy from sun is converted into chemical energy in the form of food. The plants are eaten by other organisms such as animals, birds and humans as a source of food and energy.