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GS Geography Physical Geography of World
Q.

Man can maintain an ecological balance in the biosphere by:
Explanation:

ANS. (D) 
Ecological balance is a state of dynamic equilibrium within a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, subject to gradual changes through natural succession.” In other words, it refers to stable balance in the numbers of each species in an ecosystem. So to maintain this balance, the delicate balance between the organisms constituting and ecosystem should be understood.

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