We are encouraged to plant more trees so as to ensure clean environment and also provide biomass fuel.

Gobar-gas is produced when crops. vegetable wastes etc., decomposes in the absence of oxygen.

The main ingredient of biogas is ethane and it gives a lot of smoke and also produces a lot of residual ash.

Biomass is a renewable source of energy

It is expected to harness wind power to maximum in open space

The potential energy content of wind blowing at high altitudes is the source of wind power.

Wind hitting at the blades of a windmill causes then to rotate. The rotation thus achieved can be utilized further.

One possible method of utilizing the energy of rotational motion of the blades of a windmill is to run the turbine of an electric generator.

Its temperature increases

Larger amount of potential energy is converted into kinetic energy

The electricity content of water increase with height

More water molecules dissociate into ions.

Sun can be taken as an inexhaustible source of energy

There is infinite storage of fossil fuels inside the earth.

Hydro and wind energy plants are nonpolluting sources of energy.

Waste from a nuclear power plant can be easily disposed off.

More in rainy season since damp air would mean more air mass hitting the blades.

Depends on the height of the tower

Depends on wind velocity

Can be increased by planting tall trees close to the tower.