Question

2. Ultimate source of energy is:
(a) Chemical energy
b) Wind energy
(c) Solar energy
d Water energy​

Answer 1

Photosynthesis is a process used by plants and other organisms to convert light energy, into chemical energy. It takes place by two steps light reaction and dark reaction. Light reaction synthesizes ATP and NADPH
2
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which is utilized for fixation of carbon dioxide into carbohydrates during the dark reaction. So, the sun is called as the ultimate source of energy for all living organisms.
So, the correct answer is option B.

Answer 2

The ultimate source of energy is solar energy.

• The plants which are the primary producer of the ecosystem make their food by using the light energy from the sun.

• This energy that is produced by the producers is then ultimately passed on to the different trophic levels in the ecosystem.

• If the sun fails to give the energy then the producers will not be able to synthesize food and as a result, no organism will be able to survive.

    So, Sun is the ultimate source of energy.