General Knowledge - Basic General Knowledge - Discussion

Discussion Forum : Basic General Knowledge - Section 7 (Q.No. 9)
9.
The ozone layer restricts
visible light
infrared radiation
x-rays and gamma rays
ultraviolet radiation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Raziq said:   7 years ago
When the ultraviolet rays touch our skin.

The oil in skin converted into vitamin-D.

Ummama khan said:   8 years ago
I like this question because it is useful but I want an explanation for this.

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