Light is a kind of energy.Reflections and shadows are based on it actually.Light is also a major topic in science.
     Light is radiant energy, usually referring to electromagnetic radiation that is visible to the human eye, and is responsible for the sense of sight.Reflectin occurs when light bouces from an object.
     Shadow can be defined as an area where light is obstructed by an object.

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If we encounter a man of rare intellect, we should ask him what books he reads.
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