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,
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