question_answer 44)

  Biotic component of biosphere is not constituted by (a) producers                     (b) consumers                   (c) decomposer                (d) air

Answer:

  (d) Biosphere is the global sum of all ecosystems, integrating all living beings and their relationship including their interaction with the elements of lithosphere (land), hydrosphere (water) and atmosphere (air). Biosphere is composed of (i) Biotic Components are the living things that shape an ecosystem. Biotic components usually include producers, consumers and decomposers. (ii) Abiotic Components are the non-living chemical and physical part of the ecosystem like air, water, soil, temperature and sunlight,