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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.
The Sun
An incandescent light bulb is very inefficient light source because of the amount of heat energy wasted when it is energized.
Because the sun is our source of both heat and light. Without it, we could not survive and we would have no heat source left.
Light and heat are emitted from an energy source...
sun
It is a natural source of heat energy
-- radio for communication -- 2.5 GHz CW to cook food -- radar -- microwave radio -- light from light bulbs -- heat from infrared heat lamps -- heat from an electric heater -- diagnostic x-ray source -- tanning lamps -- laser light
sun is the primary source of heat and light......
Well, there are countless. In fact, any source of heat is also a source of light, although not always visible to the human eye. Nevertheless, a light bulb is a good example. Or the sun. Or any other star. Or, well, just name it...
The source of the light is the source of the energy carried by the light. The heat of a fire, the chemical energy in the tail of a firefly, the kinetic energy of the flint scraping across the stone, the heat of the filament in the light bulb, the electricity that powers the LED or the laser, etc.
The sun is the source of heat and light for plant-life.
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.
We're modestly familiar with the source of heat and light. And we know that heat and light both exist and are real. Cold and darkness do not exist. They merely describe the lack of heat and light, respectively.
The main source of light is the sun
the sun?
Yes, the sun is the origin of heat and light in our biosphere.