Why is the sunlight important to the biosphere?
Sunlight is the beginning of the food chain… without it, very few organisms can survive. Plants and algae use sunlight to produce their own food, then other organisms consume those organisms, and so on. Sunlight is the “energy input” in the food chain… energy is never created nor destroyed, just transfered from object to object (or state to state). If there is no energy flowing in, the food chain will stop, and all living things in a biosphere will “starve.
