Environmental Chemistry

1. Nutrient leach is due to

a) Combustion of soil
b) Neutralization of soil
c) Drying of soil
d) Acidification of soil

2. Ozone is a gas having boiling point

a) Moderate
b) Low
c) Unstable
d) High

3. Water is essential for life on

a) Space
b) Sun
c) Earth
d) Moon

4. Sea gets polluted by accidental oil spills and

a) Cargo Oil tankers
b) Atmospheric pressure
c) N₂ gas
d) Aeroplanes

5. The Ozone layer is

a) 20-28 Km high
b) 26-29 Km high
c) 24-27 Km high
d) 25-28 Km high

6. O₃ is effectively removed by

a) CNG
b) CFCs
c) PVC
d) TNT

7. Detergent greatly affect

a) Modern life
b) Plants life
c) Tarrestrial life
d) Aquatic life

8. Pb pollution is due to

a) Acidic rain
b) Cd pollution
c) Space pollution
d) Metallic pollution

9. BOD means

a) Boron Oxygen Deuterium
b) Biochemical oxygen demand
c) Biochemical oxygen death
d) Biochemical oxygen dissolved

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