This video lecture from Man and His Environment (F.Sc. second year Biology) covers information about wildlife as non-renewable resource and detail discussion about different sources of energy which include fossil fuels, hydroelectric power, tidal power, wind power, nuclear energy, geothermal energy, solid waste and ocean thermal gradient. 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.