51. Dome mountain are the result of

1. 1. Intrusion of magma

   
   
   

   2. Folding

   
   
   

   3. Frictions at the joints of the rocks

   
   
   

   4. Faulting

   
   
   

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   NA

   Correct Option: A

   NA

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52. Moho discontinuity lies at the depth of approximately

1. 1. 400 km

   
   
   

   2. 490 km

   
   
   

   3. 445 km

   
   
   

   4. 330 km

   
   
   

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   NA

   Correct Option: A

   NA

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53. Tectonic activity

1. 1. Breaks and bends the crustal rocks

   
   
   

   2. Forms and bends the crystal rocks

   
   
   

   3. Reshapes by bending the crustal

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: A

   NA

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54. 'A valley of ten thousand smokes' is the name given to a zone near the volcano

1. 1. Mauna loa of Hawaii

   
   
   

   2. Pinatabu of Philippines

   
   
   

   3. Pelle in the Caribbean sea

   
   
   

   4. Katmai of Alaska

   
   
   

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   NA

   Correct Option: D

   NA

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55. Which of the following Continents has no volcanoes ?

1. 1. Africa

   
   
   

   2. Australia

   
   
   

   3. North America

   
   
   

   4. South America

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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