Question

Which is the ultimate source of energy on earth? [1 MARK]

Answer 1

Correct answer: 1 Mark
The sun is called the ultimate source of energy because:

• It is the primary source of energy for the earth.
• With the help of solar energy, all green plants(producers) produce food by the process of photosynthesis.
• In turn, animals eat plants and use that same chemical energy for all their activities.