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27 December, 00:25

If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime?

Ultraviolet light detects the presence of radioactive substances.

Ultraviolet light shows cold areas as blue and warm areas as red.

Ultraviolet light causes substances to fluoresce and give off visible light.

Ultraviolet light transmits information to AM and FM radio receivers.

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  1. 27 December, 00:35
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    The answer is C when they use UV light. first they spray the area with a special solution then they shine it and if it is there it glows.
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