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प्रश्न
True or False:
Ozone in the Troposphere is a harmful pollutant.
विकल्प
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
You have been selected to talk on 'ozone layer and its protection" in the school assembly on 'Environment Day.'
(a) Why should ozone layer be protected to save the environment?
(b) List any two ways that you would stress in your talk to bring in awareness amongst your fellow friends that would also help in protection of ozone layer as well as the environment.
Write the harmful effects of ozone depletion.
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
Briefly explain depletion of ozone layer and its effects.
Match the items in column I with the closely related ones in column II.
| Column I | Column II | ||
| (i) | Chlorofluorocarbons (CFCs) | (a) | Global warming |
| (ii) | Fly ash | (b) | Biodegradable |
| (iii) | Cow dung | (c) | Nuclear radiation pollutant |
| (iv) | CO2 and methane | (d) | Acid rain |
| (v) | Sulphur dioxide | (e) | Industrial waste |
| (vi) | Iodine-131 | (f) | Ozone depletion |
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.
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
Select the correct answer from the following statement:
The gas which in presence of U.V. light gives two atoms of the same gas.
Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?
- Peptic ulcers
- Eye disease like cataract
- Damage to lungs
- Skin cancer
What is exactly measured in Dobson units or DU?
