11. Which one among the following best explains the reason for the eastern and western boundaries of the Pacific Ocean experiencing frequent earthquake ?

1. 1. There are deep ocean trenches along these margins

   
   
   

   2. High mountain stretch along the continental margins adjacent to this ocean

   
   
   

   3. The currents of the vast Pacific Ocean continue to dash against the continental margins

   
   
   

   4. These margins coincide with the plate margins

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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12. A ridge , 64000 km long and 1000 to 4000 km wide, runs down the middle of the North and the South Atlantic Oceans basins, into the Indian Ocean basins, then passes between Australia and Antarctica to enter the south Pacific basin, What is this ridge ?

1. 1. Socotra - Lakshadweep - Chagos ridge

   
   
   

   2. Pacific- Antarctica ridge

   
   
   

   3. Dolphin-Challenger - Ridge

   
   
   

   4. Mid - oceanic ridge

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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13. Dead sea is situated in which one of the following

1. 1. A Rift Valley

   
   
   

   2. An Itermontane Plateau

   
   
   

   3. Intermontane Plains

   
   
   

   4. Canyons

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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14. The canal joining Baltic Sea to North sea is

1. 1. Kiel Canal

   
   
   

   2. Surez Canal

   
   
   

   3. Panama Canal

   
   
   

   4. Bass Strait

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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15. What is the proportion of landmass of the ocean floor plotted against the given datum line called ?

1. 1. Altimetric curve

   
   
   

   2. Hypsographic curve

   
   
   

   3. Hygrometric curve

   
   
   

   4. Hydrometric curve

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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