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CHAPTER 8 - ENVIRONMENTAL ISSUES

MANOJ. G

GHSS ANCHAL WEST, KOLLAM

YOUR NAME *

YOUR SCHOOL *

1. Electrostatic precipitator is used to remove *

1 point

gaseous air pollutants

particulate matters from exhaust

pollutants from waste water

infectious microbes from waste water

2. Advantage of CNG is *

1 point

burnt more efficiently than petrol and diesel

cheaper than petrol or diesel

cannot be adulterated

all of the above

3. A water body has high BOD, which means *

1 point

water is highly polluted

water is less polluted

water has no impurities

safe to drink

4. Increase in the conc. of a toxicant at successive trophic level is called *

1 point

algal bloom

eutrophication

biomagnification

green house effect

5. select the gas which is not a green house gas *

1 point

CO2

CH4

CFC

6. Dobson Unit is used to measure the *

1 point

thickness of ozone layer

extent of eutrophication

rate of pollution in water

rate of radioactive pollution

7. Montreal protocol is an international treaty to control *

1 point

green house effect

emission of ozone depleting substances

Noise pollution

vehicular air pollution

8. Jhum cultivation in north eastern states in India causes *

1 point

reforestation

deforestation

aforestation

biodiversity conservation

9. The concept introduced in India to protect and manage the forest with the involvement of local communities is *

1 point

chipko movement

JFM

Montreal protocol

FOAM

10. A fine powder of recycled modified plastic used to lay roads is *

1 point

e - waste

sanitary landfills

bitumen

polyblend

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