FSc Biology Book2, CH 27, LEC 3; Energy Conservation, Degradation and Depletion of Resources and Modification of Environment

This video lecture from Man and His Environment (F.Sc. second year Biology) covers information about energy conservation steps, degradation and depletion of resources and modification of environment by comparing past with present life. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.