Combustion of fossil fuels generates a lot of air pollution. Can
you suggest any two alternative sources of energy which do not
cause any pollution?
The quality of air at various locations is monitored regularly by government and other agencies? In what way can you use these data?
Name any two sources which cause air pollution due to suspended
particulate matter.
Name the chemicals which are used in refrigerators and air
conditioners and damage ozone layer when released in air.
Which of the following is not a green house gas?
(a) nitrogen gas (b) water vapour (c) methane gas (d) carbon dioxide
Trees help in reducing the pollution of our environment. Lakhs
of trees are planted by people in the month of July every year.
The occasion is called
(a) forest Conservation Day (b) plantation month (c) Van Mahotsav (d) wildlife week
A pond contains clean water. Which of the following activities
will produce least pollution of water?
(a) washing clothes in the pond
(b) animals bathing in the pond
(c) washing motor vehicles in the pond
(d) swimming in the pond.
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