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Biology
Grade-9
Easy
Question
Primary source of energy of an ecosystem is _________.
Solar energy
Chemical energy
Nuclear energy
Motion Energy
Hint:
The sun is the primary source of energy on Earth.
The correct answer is: Solar energy
Every organism in every ecosystem is directly or indirectly dependent upon the sun for its survival. Solar energy is used by plants for photosynthesis which are then fed upon by herbivores who are in turn fed upon by carnivores. Thus, solar energy is the primary source of energy for every organism.