Tag: depletion of ozone layer

Questions Related to depletion of ozone layer

Identify the wrong statement/ statement from the following.
(1) ${ CO } _{ 2 }$ is released into the atmosphere through volcanic activity
(2)${ CO } _{ 2 }$ is released into the atmosphere through process of photosynthesis
(3)${ CO } _{ 2 }$ is released into the atmosphere through process of respiration
(4)${ CO } _{ 2 }$ is released into the atmosphere through process of forest fires


  1. 1 and 3

  2. only 2

  3. only 4

  4. 2 and 4


Correct Option: B
Explanation:

Oxygen is released in the atmosphere through the process of photosynthesis. Carbon dioxide is released by different human activities like the burning of fossil fuels,  deforestation, burning of petrol etc.

So, the correct option is 'Only 2'.

The legally binding international agreement to reduce Greenhouse gases by 5% 2012 is ___________

  1. Vienna convention

  2. Montreal Protocol

  3. Kyoto Protocol

  4. Ozone Protocol


Correct Option: C

Which of the following gases are mainly responsible for the atmospheric greenhouse effect in the earth's atmosphere?

  1. Oxygen and nitrogen

  2. Nitrogen and carbon dioxide

  3. Ozone and oxygen

  4. Water vapor and carbon dioxide


Correct Option: D

The gas responsible for the greenhouse effect on Venus is:

  1. Carbon dioxide $(CO _{2})$

  2. Oxygen $(O _{2})$

  3. Ozone $(O _{3})$

  4. Nitrogen $(N _{2})$


Correct Option: A

Pick out the potent green house gas

  1. $CO _{2}$

  2. $N _{2}O$

  3. $CH _{4}$

  4. $O _{3}$


Correct Option: C

Green House effect is caused by

  1. Increase in $CO _{2}$

  2. Increase in $O _{2}$

  3. Decrease in $O _{2}$

  4. Decrease in $CO _{2}$


Correct Option: A

Which of the following green house gases trap more heat?

  1. Methane

  2. Nitrous oxide

  3. Carbon dioxide

  4. Trifluoro methyl sulphurpentafluoride


Correct Option: D

What would be average temperature of earth without greenhouse gases?

  1. $90^{o}C$

  2. $70^{o}C$

  3. $10^{o}C$

  4. $18^{c}ircC$


Correct Option: D

Earth's surface temperature can be altered, by changing concentration of

  1. Heat

  2. Greenhouse Gases

  3. Air pollutants

  4. All of above


Correct Option: B

What is the number of Green House Gases, as recognized by the Kyoto Protocol?

  1. 3

  2. 4

  3. 5

  4. 6


Correct Option: D