Acid rain is caused by increase in the atmospheric concentration of

1. SO₂ and NO₂

2. SO₃ and CO

3. CO₂ and CO

4. O₃ and dust

Which of the following is not one of prime health risks associated with greater UV

radiation through the atmosphere due to depletion of stratospheric zone?

1. Increased skin cancer

2. Reduced immune system

3. Damage to eyes

4. Increased liver cancer

A scrubber in the exhaust of a chemical industrial plant removes

1. Gases like sulphur dioxide

2. Particulate matter of the size 5 micrometer or above

3. Gases like ozone and methane

4. Particulate matter of the size 2.5 micrometer or less

Kyoto Protocol was endorsed (supported) at

1. CoP-3

2. CoP-5

3. CoP-6

4. CoP-4

The Air Prevention and Control of Pollution Act came into force in ?

1. 1975

2. 1981

3. 1985

4. 1990

Measuring Biochemical Oxygen Demand (BOD) is a method used for

1. estimating the amount of organic matter in sewage water

2. working out the efficiency of oil driven automobile engines

3. measuring the activity of Saccharomyces cerevisae in producing curd on a commercial

scale

4. working out the efficiency of RBCs about their capacity to carry oxygen

Which one of the following pairs of gases are the major cause of Green house effect?

1. CO₂ and CO

2. CFCs and SO₂

3. CO₂ and N₂0

4. CO₂ and O₃

Which one of the following statements is wrong in case Bhopal gas tragedy?

1. Thousands of human beings died

2. Radioactive fall out engulfed Bhopal

3. It took place in the night of December 2/3, 1984

4. Methyl isocynate gas leakage took place

Eutrophication is often seen in

1. fresh water lakes

2. ocean

3. mountains

4. deserts

A renewable exhaustible natural resource is 

1. coal

2. petroleum

3. minerals

4. forest