1) The sources of light that occur in nature and are not made by many are called  a) Natural b) Artificial 2) Objects that give off light of their own are called a) Non - Luminous b) Natural c) Artificial d) Luminous 3) Name the properties of lights a) Light is form of food b) Light is form of air c) Light is a form of cloth d) Light is a form of energy 4) The objects that allow light to pass through the completely are called a) Translucent b) Transparent c) Opaque

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