Question

difine five method of conservation of resources​

Answer 1

(i)Judicious use of energy resources.

(ii)Use of public transport.

(iii)Switching off electrical gadgets when not in use. ...

(iv)As India has been blessed with abundance of sunlight,water, biomass , wind,we must use these to overcome present day energy crisis.

(v). Product Life Extension:

Answer 2

Explanation:

Simplify - 3degree+5°+ 7degree