What are UV rays ? Give their two uses.
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=>Ultra violate rays are used by doctors for speacial treatments for detects the hidden diseases inside our body parts.
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1. Uv rays is used to produce vitaminD in bodies.
2.it is used for detects some skin disoders
✏✏
=>Ultra violate rays are used by doctors for speacial treatments for detects the hidden diseases inside our body parts.
✒✒✒
1. Uv rays is used to produce vitaminD in bodies.
2.it is used for detects some skin disoders
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