Q.3 Define air pollution. What are air pollutants?
Q.4 What are the various sources of air pollutants?
Q.5 What is smog? Why is it harmful?
Q.6 What is acid rain?
Q.7 How is the Taj Mahal affected by air pollution?
Q.8 What is meant by 'Marble Cancer?
Q.9 Write the full forms (0) CFC (ii) CNG (*) LPG (ſv) WWE
Q.10 What is greenhouse effect? Name four greenhouse
gases.
Q.11 Write a note on global warming mentioning its
effects too.
Answers
Answer:
Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. ... When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.
mobile sources – such as cars, buses, planes, trucks, and trains.
stationary sources – such as power plants, oil refineries, industrial facilities, and factories.
area sources – such as agricultural areas, cities, and wood burning fireplaces.
Overall, smog is harmful to both the respiratory (lungs) and cardiovascular (heart) systems. It aggravates heart problems, bronchitis, asthma, and other lung problems. Smog reduces lung function even in healthy people. Even at low levels, ground level ozone and fine particulate matter are harmful.