make a list of a some luminous object and substance and classify them into natural and artificial source of light
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Some artificial sources are torches, LED lights, etc
Some natural sources are fire ,stars, etc
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There are lots of artificial light sources available in the present world.
It is actually classified into three major types. It includes lamps, light-emitting diodes and lambs which are based on the discharge of gas.
The nature presents lots of natural light sources to people. it includes electricity in storms, fire, sun and stars.
The table lamps, televisions, flashlights and neon signs are the other examples of artificial lights.
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