Which among the following are man-made sources of air pollution?
a. Burning of fire wood and dung cakes
b. Forest fires
d. Power plants
a, c, d and f
There are two types of pollution: natural and man-made. Man-made pollution has a huge effect on our environment and definitely on us. Man-made sources of air pollution are:
i. Burning of firewood and dung cakes
iii. Power plants
All of these release smoke and other harmful gases into our atmosphere. The other two - forest fires and volcanic eruptions are natural and not man-made.