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.