Multiple choice

Which two items are artificial source of light?

  1. sun and moon

  2. electric bulb and candle

  3. fire flies and stars

  4. sum and stars
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sun, stars and fireflies are the examples of natural sources of light and also the luminous object. Moon is also a natural source of light through it is non-luminous. Electric bulb, torch streetlight and candle are not natural object as they are being industrially prepared but as they emit their own light so are known as artificial source of light.

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