فائل:Ozone altitude UV graph.jpg

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Ozone_altitude_UV_graph.jpg ‏(504 × 380 پکسل، فائل کا حجم: 42 کلوبائٹ، MIME قسم: image/jpeg)

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خلاصہ

تفصیلOzone altitude UV graph.jpg	Levels of ozone at various altitudes, and related blocking of several types of ultraviolet radiation. The ozone concentrations shown are very small, typically only a few molecules O₃ per million molecules of air. But these ozone molecules are vitally important to life because they absorb the biologically harmful ultraviolet radiation from the Sun. There are three different types of ultraviolet (UV) radiation, based on the wavelength of the radiation. These are referred to as UV-a, UV-b, and UV-c. The figure also shows how far into the atmosphere each of these three types of UV radiation penetrates. We see that UV-c (red) is entirely screened out by ozone around 35 km altitude. On the other hand, we see that most UV-a (blue) reaches the surface, but it is not as genetically damaging, so we don't worry about it too much. It is the UV-b (green) radiation that can cause sunburn and that can also cause genetic damage, resulting in things like skin cancer, if exposure to it is prolonged. Ozone screens out most UV-b, but some reaches the surface. Were the ozone layer to decrease, more UV-b radiation would reach the surface, causing increased genetic damage to living things.
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فائل کی تفصیلات کا اصل صفحہ یہاں تھا۔ درج ذیل تمام صارفین en.wikipedia کے ہیں۔

date/time	username	edit summary
20:23, 23 March 2006	en:User:Kilo-Lima	(sub)
07:39, 14 April 2005	en:User:SEWilco	(More text)
07:31, 14 April 2005	en:User:SEWilco	(Levels of <a href="/wiki/Ozone" title="Ozone">ozone</a> at various altitudes, and related blocking YAY! of several types of <a href="/wiki/Ultraviolet_radiation" title="Ultraviolet radiation">ultraviolet radiation</a>. == Source == {{PD-USGov-NASA}} <a href="/wiki/NASA" title="NASA">NASA</a>. ''Studying Earth's Environment From Space''. <a href="/wiki/June_2000" title="June 2000">June 2000</a>. (<a href="/wiki/April_14" title="April 14">April 14</a> <a href="/wiki/2005" title="2005">2005</a>) http://www.ccpo.od)

کسی خاص وقت یا تاریخ میں یہ فائل کیسی نظر آتی تھی، اسے دیکھنے کے لیے اس وقت/تاریخ پر کلک کریں۔

	تاریخ/وقت	تھمب نیل	ابعاد	صارف	تبصرہ
رائج الوقت	15:38، 4 مئی 2006ء		504 × 380 (42 کلوبائٹ)	Elch~commonswiki	Levels of ozone at various altitudes, and related blocking of several types of ultraviolet radiation. The ozone concentrations shown are very small, typically only a few molecules O<sub>3</sub> per million molecules of air. But these ozone molecu
	07:56، 1 اپریل 2006ء		504 × 380 (42 کلوبائٹ)	Maksim	La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Levels of ozone at various altitudes, and related blocking of several types of ultraviolet radiation. The ozone concentrations shown are very small, typically only a few molec

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