Answer:
We
can understand why flora and fauna should be conserved by understanding their
use with the examples given below
(i) Among flora, trees provide us their wood to
serve our various requirements, besides providing
shelter from the hot sun in summer.
(ii) Crops provide our food including cereals, vegetables
and fruits.
(iii) Many plant extracts are used for making medicines to
cure and prevent diseases.
(iv) Among fauna, milch animals provide milk products as
food.
(v) Poultry animals provide eggs and other animals as well
as fish are also providing us food articles.
(vi) Insects help in pollination of crops and biologically
control other harmful insects.
All these maintain a balanced ecosystem and so should be conserved.
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