General Knowledge - Basic General Knowledge - Discussion
Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 13)
13.
Exposure to sunlight helps a person improve his health because
Discussion:
90 comments Page 9 of 9.
Siri said:
1 decade ago
Can you tell me the effect of UV radiations ?
Amar said:
1 decade ago
Ozone layer either pass uv rays or stop them. Whats the meaning of filtered uv rays. Sunlight is filtered no doudt through ozone. Moreover uv rays are of short wavelength, if it penetrate in skin, it would cause skin cancer or may cause mutation in cells. Sunlight stimulate the formation of melanin pigment in the skin layers. Which is helpful in maintaining homeostasis of body.
Ravi said:
1 decade ago
Ozone layer is the protective layer. Its chemical composition is O3. It absorb ultra violet ray, which is very harmful for us. But now a day, due to heavy pollution layer become destroy. The main harmful gass is carbon-mono-oxide, chloro-fluro-carbon.
Ruchitha said:
1 decade ago
Can you explain about ozone layer ?
Akanksha said:
1 decade ago
UV rays are harmfull for human body then how can they help us?
There is a hole in the ozone layer.
There is a hole in the ozone layer.
Siva said:
1 decade ago
Not direct UV rays strike the skin. The filtered UV rays from ozone, which are non destructive indulge in this process.
@Raji
Skin oils are nothing but white lipid substance beneath our skin.
@Raji
Skin oils are nothing but white lipid substance beneath our skin.
Lokesh Bhirud said:
1 decade ago
Can anybody tell the exact reason for this answer. It was really tricky.
Anish said:
1 decade ago
Ultra violet rays are absorbed by Ozone layer, then how could it comes to skin.
BABU said:
1 decade ago
Very small amount of ultra violet rays are incident along with normal light rays on the human body which helps convert the skin oil into vitamin D.
Raji said:
1 decade ago
What are skin oils?can anybody explain this please?
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