On what basis are the sources of energy classified as green energy and brown energy ?

Wind mill, Hydro electric power, Nuclear reactor and Solar cell are four energy sources. Classify the above four energy sources as green energy and brown energy.

Which of the following is a green energy ?

Classify the energy from the following sources as green energy and brown energy . Solar cells , atomic reactors , tidal energy , hydro electric power diesel engines , windmills , thermal power stations .

What is meant by non renewable sources of energy ?

Classify the energy from the following sources as green energy and bown energy. Solar cells, atomic reactor,. tidal energy, hydroelectric power, diesel energies, windmills, thermal power.