Question

What is the ultimate source of energy for the biosphere?

Answer 1

Biosphere:

1. It is defined as the region on, above, and below the Earth's surface where life exists.

Explanation:

1. The ultimate origin of energy for the biosphere is Sunlight.
2. Sunlight is used by the organisms of the first trophic level,i.e., the producers, and the green plants for producing their own food.