21. Which gas is responsible for global warming

1. 1. O₂

   
   
   

   2. O₂ and CO₂

   
   
   

   3. CO₂ and CH₄

   
   
   

   4. CH₄

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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22. Increased asthmatic attacks in certain seasosns are related to

1. 1. Inhalation of seasonal pollen

   
   
   

   2. Eating of seasonal vegetables

   
   
   

   3. Low temperature

   
   
   

   4. Wet and dry environment

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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23. Domestic waste constitutes

1. 1. Non-biodegradable pollution

   
   
   

   2. Biodegradable pollution

   
   
   

   3. Effluents

   
   
   

   4. Air pollution

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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24. Ozone hold is maximum over

1. 1. Europe

   
   
   

   2. Antarctica

   
   
   

   3. India

   
   
   

   4. Africa

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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25. Ozone day is

1. 1. January, 30

   
   
   

   2. September, 16

   
   
   

   3. April, 21

   
   
   

   4. December, 25

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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