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NCERT 7th Class (CBSE) Social Science: The Hydrosphere – Quiz

NCERT 7th Class (CBSE) Social Science: The Hydrosphere – Quiz

37 Multiple Choice Questions related to The Hydrosphere – Quiz:

  • Ocean water is warmer near the equatorial region and the temperature decreases towards the polar regions.
  • The average salinity of ocean water is 35 per thousand.
  • The movement of ocean water takes place through waves, tides and ocean current.
  • Waves are formed in the oceans or seas when wind blows across the water surface.

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