Biology
Match the items in column I with the closely related ones in column II.
| Column I | Column II |
|---|---|
| (i) Chlorofluocarbons (CFCs) | (a) Global warming |
| (ii) Flyash | (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 |
Pollution
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Answer
| Column I | Column II |
|---|---|
| (i) Chlorofluocarbons (CFCs) | (f) Ozone depletion |
| (ii) Flyash | (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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Related Questions
Assertion. The greenhouse effect is exacerbated by the presence of nitrogen oxides and sulphur oxides in the atmosphere, intensifying the absorption of heat and contributing to global warming.
Reason. Oxides of nitrogen and sulphur, primarily released through industrial activities and combustion processes, amplify the greenhouse effect by enhancing the heat-trapping capacities of the atmosphere, leading to an increase in the average global temperatures.
- Both A and R are True
- Both A and R are False
- A is True and R is False.
- A is False and R is True.
Name the following pollutants:
(i) A pollutant which is mainly responsible for causing acid rain.
(ii) Any two chemicals leading to the formation of ozone holes.
Fill in the blanks:
(i) Rubber particles and dust raised by running motor vehicles are examples of …………… pollutants.
(ii) Too frequent exposure to …………… in a medical diagnostic technique may damage chromosomes.
(iii) Thermal power plants give out a lot of …………… waste water.
(iv) Sewage is a liquid waste from ……………
Write the full forms of each :
(a) DDT
(b) ODF
(c) CFCs
(d) CNG
(e) LPG