Sun is the ultimate source of energy for the earth. A. true B. false C. ambiguous D. data insufficient

The sun is the ultimate source of almost all kinds of energy on earth,

either directly or indirectly.
Directly sun gives us solar power and is perfect non-conventional energy source.
Moreover, Fossil fuels (coal, oil and gas) are the

transformed forms of plants (and animals) which once lived on the earth

and grew capturing the energy of the sun. Biomass is a product of

photosynthesis where the sun has the major role. Hydro-electricity

depends upon the water cycle which again is dependent on solar

radiation. Similarly, wind energy, tidal power, wave power all, in some

way or other, and depend on the sun.