1) What is a example of Artificial source of light? a) Sun b) Candle c) Firefly d) Stars e) Glow Worms 2) In opaque object is the light visible ? a) True b) False 3) Is butter paper a example of translucent ? a) True  b) False 4) Is Moon a Natural source of light ? a) True  b) False 5) What is the definition of Opaque object ? a) The object that do not allow any light to pass through. b) The object that allow light to pass through. c) The object that allow some light to pass through.

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