Question

4. (i) Define the term Smog
(ii) Name two types of diseases caused by regularly breathing the polluted air.

Answer 1

(i)In winter when fog combines with smoke it is called as smog.

(ii)Asthma and lung cancer.

Answer 2

1. Smog :- High level of sunburnt carbon particles or hydrocarbon present as pollutant in air and water condenses out of air in cold and causing poor visibility.

2. Astama and cancer