Other than the abiotic components, which of the given biotic components are not required to make an aquarium…

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
  1. (i) and (iv)
  2. (ii) and (iii)
  3. (i) and (iii)
  4. (ii) and (iv)

Solution

(ii) and (iv)

Asked in: CBSE

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