Q 1 Following are some statements about pollution. Which type of pollution
do those express?
a) Fog seems to be appearing in Delhi during day hours.
b) Many times, vomiting, and dysentery occurs after eating ‘pani puri’.
c) Problem of sneezing occurs sometimes during visit to garden.
d) Crop does not grow up in some areas
e) People living in busy squares face the problems like short breathing, and
other respiratory problems
Answers
(a) The pollution referred to here is air pollution.
Explanation: The fog referred to here is actually smog (Smoke + Fog). It is caused by the collection of the fine type of dust and toxic gases due to stagnant movement of air during winters.
(b) The pollution referred to here is water pollution.
Explanation: Use of water with bacterial contamination might lead to vomiting and dysentery in people. Moreover unhygienic conditions give a perfect environment for the organisms to grow.
(c) The pollution referred here is that of air pollution.
Explanation: Pollens from flowers in the garden may lead to asthma which is the cause of sneezing. Microbes in the air can also cause an allergy which leads to sneezing.
(d) The pollution referred to here is soil pollution
Explanation: Effluents from industries consisting of water with high salt concentration causes a mineral imbalance in the soil. This imbalance result in loss of fertility of the soil and crops can’t grow in these areas.
(e) The pollution referred here is that of air pollution.
Explanation: In busy squares, with the increase in human population the number of vehicles also increases. This leads to an increase in the smoke released into the atmosphere and as such the air gets polluted. People thus get respiratory problems.
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Q1. Following are some statements about pollution. Which type of pollution do those express?
a) Fog seems to be appearing in Delhi during day hours.
b) Many times, vomiting, and dysentery occurs after eating ‘pani puri’.
c) Problem of sneezing occurs sometimes during visit to the garden.
d) Crop does not grow up in some areas
e) People living in busy squares face the problems like short breathing, and other respiratory problems.