Which of the following does not cause air pollution?
a- Burning of fossil fuels
b- smoke from industries
c- spilling of oil in water bodies
d- vehicles
How can water pollution be curbed?
a- by washing clothes near water bodies
b- by treating sewage waste before disposing into the water bodies
c- by disposing waste plastic and other materials into the water bodies
d- both (a) and (c)
Noise pollution can cause:
a- loss of hearing
b- visual impairment
c- stress-related diseases
d- both (a) and (c)
Nuclear pollution is caused by:
a- nuclear waste
b- blaring loudspeakers
c- organic fertilisers
d- deforestation
The three Rs are
a- reduce, redo and recycle
b- reduce, reuse and recycle
c- reuse, revise and reduce
d- redo, reduce and reuse
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Answers
Answer:
Air is a mixture of various gases. One of the gases is 21% part of
the air and is essential for the survival of human beings. This
gas is
(a) nitrogen (c) ozone
(b) oxygen (d) argon
2. Which of the following is not a source of air pollution?
(a) automobile exhaust (c) windmill
(b) burning of firewood (d) power plant
3. Boojho wishes to contribute in reducing air pollution. Which
vehicle should he use for going to school?
(a) car (c) autorickshaw
(b) school bus (d) scooter
4. Which of the following is not a way to conserve water?
(a) replace (c) reuse
(b) reduce (d) recycle
5. The type of pollution which is likely to affect Taj Mahal in Agra
to a greater extent is
(a) air pollution (c) soil pollution
(b) water pollution (d) noise pollution
6. Incomplete combustion of fuel such as petrol and diesel gives
(a) nitrogen oxide (c) carbon monoxide
(b) sulphur dioxide (d) carbon dioxide
7. The phenomenon of marble cancer is due to
(a) soot particles (c) fog
(b) CFCs (d) acid rain
8. Potable water is the water which is
(a) obtained from a river. (c) pure and fit for drinking.
(b) obtained from a lake. (d) used only for washing clothes.
Answer:
spilling of oil in water bodies