Quiz 5

1) Which of the following is NOT a greenhouse gas?

• A) Oxygen

• B) Carbon dioxide

• C) Water Vapour

• D) Methane

2) In mega cities of India, The Dominant Source of air Pollution is..

• A) Transport sector

• B) Thermal Power

• C) Municipal Waste

• D) None of the above

3) Concentration of toxic chemicals through food chain result into:

• A) Accumulation

• B) Excretion

• C) Biomagnification

• D) More than one of the above

4) Ozone hole is considered harmful to us because

• A) it can increase global warming

• B) It allows UV radiation to reach earth with may cause skin cancer

• C) It may allow entry of toxic gases from other planets

• D) Both (B) and (C)

5) Which one of the following is an extremely short lived and instable air pollutant?

• A) Nitrogen dioxide(NO2)

• B) Carbon monoxide(CO2)

• C) Radon(Rn)

• D) Ozone(O3)

6) In comparison to pure water, Boiling point of impure water

• A) Is same

• B) Increases

• C) Decreases

• D) First decreases then increases

7) Ozone holes are more pronounced at the

• A) Equator

• B) Tropic of Cancer

• C) Tropic of Capricorn

• D) Poles

8) Smog is :

• A) Ozone and smokes

• B) Vehicular pollutant

• C) Fog and smoke

• D) Fog and ozone

9) Maximum ozone depletion has been observed in which of the following?

• A) The North Pole

• B) The South Pole

• C) The Equator

• D) None of the above

10) Noise pollution is measured in

• A) Ohm

• B) Decibel

• C)Joule

• D) Ampere