No.Ligtning is not a heat source.Unless u think that the electric of the lightning have heat.<<Previous answer:Yes.Fire is a heat source and a light source.If you were meaning light bulbs, then...
A renewable resource is a product that can continuously be used without running out (water, air, sunlight) A nonrenewable resource can be used for energy but usually breaks down into a different...
Definition of Source.
A place from which something begins. In French (Une Source) a natural spring, like the source of a river. Often a spring producing water with minerals which are supposed to cure...