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प्रश्न
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 |
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उत्तर
| Column I | Column II | ||
| (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
Which pollutant released into the air during refrigeration and airconditioning is the greatest contributor to the depletion of ozone layer?
(a) BHC
(b) DDT
(c) CFC
(d) UNEP
“Damage to the ozone layer is a cause of concern”. Justify this statement.
Give Technical Terms:
The chemicals leading to the formation of ozone holes.
Fill in the Blanks:
The ______ is the layer of the atmosphere that contains the protective ozone layer
State the role of chlorofluorocarbons in ozone destruction or depletion [no equations required].
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
Bad ozone is present in ______
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
In 1987, the United Nations Environment Programme (UNEP) forged an agreement to freeze the production of a certain chemical to the year 1986 level. Name the chemical and the manufacturing companies m which this chemical was being mostly used.
In what way this chemical damage -
- the upper layers of the atmosphere and ultimately
- the organisms on the earth.
Which one of the following is measured in Dobson units (DU)?
