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प्रश्न
Give scientific reasons:
Ozone present in the stratosphere is called as “good ozone”.
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उत्तर
Ozone present in the stratosphere is called as good ozone as this ozone absorbs UV rays from the sun which is harmful to living organisms. DNA and proteins of living organisms absorb UV rays and its high energy breaks down the chemical bonds within these molecules. This causes damage to skin cells and skin cancer of different types. A high dose of UV-B causes inflammation of the cornea called snow-blindness cataracts. This all is prevented by this stratosphere ozone as it absorbs UV rays.
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संबंधित प्रश्न
Name the group of chemical compounds which damages the ozone layer.
Write the full name of CFC.
Fill in the following blank with suitable word :
Ultraviolet rays can cause skin..............
The depletion of ozone layer in the upper atmosphere is mainly due to the emission of :
(a) unburnt hydrocarbons
(b) chlorofluorocarbons
(c) greenhouse gases
(d) ultraviolet radiations
The following picture depicts a certain phenomenon
- Name the phenomenon and explain it.
- Enlist the sources that are responsible for the above mentioned phenomenon.
- List out the effects of the above phenomenon on humans.
What is Ozone?
What is the difference between stratospheric and ground level ozone?
Select the correct answer from the following statement:
The gas which in presence of U.V. light gives two atoms of the same gas.
Select the correct answer from the following statement:
A chemical responsible for ozone depletion.
Global warming is a phenomenon related to ______.
