Looking at the deteriorating air quality because of air pollution in many cities of the country, the citizens are very much worried and concerned about their health. The doctors have declared health emergency in the cities where the air quality is very severely poor.

(a) Mention any two major causes of air pollution.

(b)Write any two harmful effects of air pollution to plants and humans.

(c) As a captain of your school Eco-club, suggest any two programmes you would plan to organise in the school so as to bring awareness among the students on how to check air pollution in and around the school.

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1 Answers

 (a) Major causes of air pollution are :

1.  Burning of fossil fuels in industries, vehicles and thermal power plants. 

2.  Emissions from industries. 

3.  Burning of crop residue, garbage, fallen leaves etc.

 4.  Sewers and domestic drains emanating foul smell 

5.  Deforestation (cutting down of trees) 

(b) Harmful effects of air pollution in plants : 

1.  Decreased rate of photosynthesis due to dispersal of sunlight as a result of smoke or smog . 

2. Chlorosis or yellowing of plant leaves due to destruction of plants chlorophyll.

Harmful effects of air pollution in animals :

1.  Lower visibility 

2.  Decreased respiratory capacity and increased respiratory disorders. 

(c) Two programs are : 

1.  Organize a seminar to create awareness regarding harmful effects of air pollution. 

2. Organize a pollution free week monthly in the school, whereby teachers and students will not use vehicles. Encourage them to use bicycles or car pools if possible.

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