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Science · 2025 · 1 mark
CBSE 2025 · Region 3 · Set 1 · Q16
Other than the abiotic components, which of the given biotic components are not required to make an aquarium with small herbivorous fishes a…
Other than the abiotic components, which of the given biotic components are not required to make an aquarium with small herbivorous fishes a self-sustaining system ?
(i)
Aquatic plants and aquatic animals
(ii)
Terrestrial plants and terrestrial animals
(iii)
Decomposers as bacteria and fungi
(iv)
Consumers as clown fishes and sea urchins
Official answer
(D)
(ii) and (iv)
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CBSE Class 10 Science past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.