Science, asked by rajbiryadav094, 1 month ago

PRACTICE TIME
A. Tick (the correct answer.
1. Which of the following does not cause air pollution?
(b) Power plant
(a) Mining
(d) Irrigation
(c) Refinery
2. Which of the following is a serious environmental problem?
(b) Fertiliser
(a) Acid rain
(d) Chlorination
(c) Use of CNG
3. Which of the following gases blocks the oxygen-binding capacity of haemoglobin?
(b) Carbon monoxide
(a) Carbon dioxide
(d) Hydrogen
(c) Oxygen
4. Which of the following gases traps the solar radiations that raise the temperature
of the earth?
(a) Ozone
(C) Nitrogen
(d) Garbon dioxide
5. The layer of the atmosphere, where ozone layer is found, is
(a) Troposphere
(b) Mesosphere
(c) Stratosphere
(d) Ionosphere
6. Fly ash is released by
(a) Vehicles
(c) Households
7. PUC stands for
(a) Private Urban Carrier
(b) Pollution Unit Cell
(c) Pollution Under Control
(d) Primary Unreactive Coal​

Answers

Answered by vmsajitha24
4

Answer:

1. d

2.a

3.b

4.d

5.c

6.a

7.b

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Answered by rituraj607
4

1 d. irrigation

2 b.acid rain

3 a carbon monoxide

4 a Ozone

5 c stratosphere

6 a vehicle

7 c pollution under control

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