Question

describe briefly about ultraviolet B !!..​

Answer 1

Answer:

Ultraviolet-B: - Ultraviolet-B is an electromagnetic radiation which has a shorter wavelength than visible light. It is a harmful radiation that comes from sunlight and penetrates through the ozone hole onto the Earth's surface. ... UV −B damages DNA and activates the process of skin ageing.

Explanation:

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Answer 2

Answer:

Ultraviolet-B: - Ultraviolet-B is an electromagnetic radiation which has a shorter wavelength than visible light. It is a harmful radiation that comes from sunlight and penetrates through the ozone hole onto the Earth's surface. ... UV −B damages DNA and activates the process of skin ageing.

Explanation:

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