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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 |
संबंधित प्रश्न
How does ozone affect any ecosystem?
The prime source of chlorofluorocarbons is ______.
Name the group of chemical compounds which damages the ozone layer.
Why is ozone layer called ozone umbrella/shield?
State the chemicals responsible for ozone layer destruction.
‘There is a hole in the ozone layer’. What do you understand by this?
Discuss in detail the process of ozone depletion.
Fill in the Blanks:
The ______ is the layer of the atmosphere that contains the protective ozone layer
Enumerate methods of protecting the ozone layer and preventing its depletion.
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
