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प्रश्न
Match the items in column I with the closely related ones in column II.
| Column l | Column lI | ||
| (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 |
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उत्तर
| Column l | Column ll | ||
| (i) | Chlorofluorocarbons (CFCs) | (f) | Ozone depletion |
| (ii) | Fly ash | (e) | Industrial waste |
| (iii) | Cow dung | (b) | Biodegradable |
| (iv) | CO2 and methane | (a) | Global warming |
| (v) | Sulphur dioxide | (d) | Acid rain |
| (vi) | Iodine-131 | (c) | Nuclear radiation pollutant |
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संबंधित प्रश्न
What is UNEP?
“Damage to the ozone layer is a cause of concern”. Justify this statement.
Explain what is smog. Give its effects.
State the chemicals responsible for ozone layer destruction.
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
True or False:
Ozone in the Troposphere is a harmful pollutant.
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
Name the chemicals responsible for destruction of the ozone layer. State the main chemical from these chemicals, which is responsible for more than 80% ozone depletion.
State how CFCs break ozone in the stratosphere.
Give reason for the following:
The formation of ozone involves a chemical reaction called photolysis.
