Compare and contrast bio-mass and hydro-electricity as sources of energy.

(N/A) Bio-mass and hydro-electricity are both renewable sources of energy.
Bio-mass is derived from organic matter such as dead plants and animal wastes. It is replenished through natural biological processes. Examples include wood,agricultural residues,and gobar gas.
Hydro-electricity is generated from the potential energy stored in water at a height. It is harnessed through mechanical processes involving turbines and generators. Unlike bio-mass,which is chemical energy,hydro-electricity is a form of mechanical energy conversion.