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ICSE Class 10 Answered

Answer the following questions briefly: (i) Why is carbon dioxide considered an air pollutant? (ii) State two effects of the smog observed in major cities.                      
Asked by Topperlearning User | 20 Jul, 2015, 01:52: PM
answered-by-expert Expert Answer

(i) The overall rise in CO2 concentration has led to a greater retention of solar radiation in the atmosphere which has resulted in global warming. Therefore, CO2 is considered as an air pollutant. 

(ii) Two effects of smog observed in major cities:

  1. Smog decreases visibility which disrupts the smooth movement of road, rail and air traffic.
  2. It causes health problems such as bronchitis and asthma.
Answered by | 20 Jul, 2015, 03:52: PM

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