Question

what is altraviolet rays​

Answer 1

The rays which comes from the Sun.......it is harmful for our skin........ ozone layer protects us from UV rays...

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Answer 2

Answer:

UVC radiation is a known disinfectant for air, water, and nonporous surfaces. UVC radiation has effectively been used for decades to reduce the spread of bacteria, such as tuberculosis. For this reason, UVC lamps are often called "germicidal" lamps.