Question

1. Give reasons for the following. (a) sun is ultimate source of energy for all living organisms. ​

Answer 1

The Sun is the Ultimate Source of Energy. Every morning the sun rises, bringing light and heat to the earth, and every evening it sets. ... Plants convert light energy from the sun into chemical energy (food) by the process of photosynthesis. Animals eat plants and use that same chemical energy for all their activities.

Answer 2

Plants need sun to make food. Animals feed on plants. Other animals feed on them. Therefore sun is the ultimate source of energy for all living organisms