Ozone Layer Depletion Multiple Choice Questions (MCQ) PDF Download

MCQ 1: The name of extremely effective fire extinguishing agent is

1. helium
2. halon
3. halogens
4. argon

MCQ 2: Chemical substance used in industry for cold cleaning, is known as

1. methyl chloroform
2. carbon tetrachloride
3. halons
4. hydrocarbons

MCQ 3: Layer of atmosphere in which the Ozone layer lies is

1. exosphere
2. mesosphere
3. troposphere
4. stratosphere

MCQ 4: Montreal protocol to reduce the production of chlorofluorocarbons was assigned in

1. 1985
2. 1986
3. 1987
4. 1982

MCQ 5: Number of atoms in ozone molecules are

1. 2
2. 3
3. 4
4. 1