CBSE  /  Class 7  /  Social Science  /  Geography Water

  • 1. 
    Which is the process through which water continuously changes its form?

  • Water cycle
  • Food cycle
  • Rain
  • All of these

  • 2. 
    Which water is salty?

  • River water
  • Pond water
  • Rain water
  • Sea water

  • 3. 
    Which one of the following is an artificial enclosure for keeping small house plants?

  • Terrarium
  • Thermosphere
  • Climate
  • Evaporation

  • 4. 
    Sea water contains

  • 97.3% of salt
  • 2% of salt
  • 0.68% of salt
  • 0.973% of salt

  • 5. 
    Which day of the year is celebrated as Water Day?

  • 26 January
  • 15 January
  • 15 August
  • 22 March

  • 6. 
    The movements that occur in oceans can be broadly called

  • wave
  • circulation
  • water cycle
  • all of these

  • 7. 
    Which is the Japanese word which means ‘Harbour Waves’?

  • Tsunami
  • Sea wave
  • Ocean wave
  • None of these

  • 8. 
    When did Tsunami strike the Indian ocean?

  • 26 December, 2004
  • 26 December, 2005
  • 26 December, 2006
  • 26 December, 2007

  • 9. 
    The largest Tsunami wave travels at the speed of

  • more than 700 km per hour
  • more than 500 km per hour
  • more than 250 km per hour
  • more than 100 km per hour

  • 10. 
    The rhythmic rise and fall of ocean water twice in a day is known as

  • tide
  • wave
  • ocean current
  • none of these
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