CBSE 2025 · Region 6 · Set 3 · Q26 · 2 marks
Write the percentage of the energy of sunlight captured by green plants, to convert it into food energy. Explain the fate of this energy when green plants are eaten by primary consumers.
Marking-scheme solution
\(\displaystyle 1 \%\)
Most of the energy is lost as heat to the environment and some amount goes into digestion, growth & reproduction of that trophic level.
An average of \(\displaystyle 10 \%\) is turned into its own body and made available for the next level / primary consumer
Life ProcessesAutotrophic and Heterotrophic NutritionUnderstandvery_short_answermedium
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CBSE Class 10 Science past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.