P-2 Environmental management — Science STD 10 — Question

(i) The Earth forms the largest ecosystem which has various food chains and food webs.
(ii) Due to the interactions between biotic and abiotic factors, there is a natural balance of materials as well as lives.
(iii) Various biogeochemical cycles help in maintaining the natural balance of the environmental factors.
(iv) Prey-predator relationships help in controlling the number of individuals at a particular trophic level.
(v) Thus, naturally the balance of the ecosystem is maintained to manifest life on the Earth.