11. The coriollis effect is produced by

1. 1. pressure gradient

   
   
   

   2. earth's revolution

   
   
   

   3. earth's rotation

   
   
   

   4. earth's rotation and revolution

   
   
   

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1. View Hint View Answer Discuss in Forum

   earth's rotation

   Correct Option: C

   earth's rotation

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12. Which layer of atmosphere is vital for tele-communications ?

1. 1. Troposphere

   
   
   

   2. Thermosphere

   
   
   

   3. Stratosphere

   
   
   

   4. lonosphere

   
   
   

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1. View Hint View Answer Discuss in Forum

   The ionosphere makes the radio communications possible by virtue to the fact this layer reflects the radio singnals back to the earth.

   Correct Option: D

   The ionosphere makes the radio communications possible by virtue to the fact this layer reflects the radio singnals back to the earth.

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13. Ozone content is maximum in areas

1. 1. near equator

   
   
   

   2. polewards of 50 degree latitude

   
   
   

   3. near the tropics

   
   
   

   4. equatorward of 25 degree latitude

   
   
   

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1. View Hint View Answer Discuss in Forum

   polewards of 50 degree latitude

   Correct Option: B

   polewards of 50 degree latitude

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14. The height of tropopause towards poles

1. 1. Increases

   
   
   

   2. Remains constant

   
   
   

   3. Descreases

   
   
   

   4. Varies at a point

   
   
   

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   Descreases

   Correct Option: C

   Descreases

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15. In which form is atmospheric humidity expressed ?

1. 1. Absolute humidity

   
   
   

   2. Specific humidity

   
   
   

   3. Relative humidity

   
   
   

   4. All of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   All of these

   Correct Option: D

   All of these

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