stupidness and whatever
the sun
You do not found C.F.L. bulb in nature as such. So it is an artificial or man made source of light. It consumes very less energy. As it does not gives out heat.
jelly fish nature sources of light.
It can't.
what is man-made light
That is any source of artificial light (not a naturally occurring light)oil lampsgas lampscampfireselectric lampscandlesetc.
The sun is an example of a natural light source. A source which gives of light that is natural (not made by electricity) is a natural light source.
The sun is an example of a natural light source. A source which gives of light that is natural (not made by electricity) is a natural light source.
because of the nature of source producing it...
Aluminium is not normally a source of light. I suppose if you made a large mirror out of it you could turn that into a secondary source.
Man made
Natural light is light made by things in the nature (animals, plants etc.), and the sun. Artificial light is human made light.