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Ocean Water Movements and Tides

Comprehensive quiz covering ocean currents, tides, waves, and general oceanography topics for class VIII students

6 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is not correct about the ocean currents?

  1. Currents do not exert an influence on the climatic conditions of the coasts
  2. Winds play an important role in the circulation of the ocean currents
  3. Currents are produced by the differences in the density of the sea water at different depths
  4. Direction of ocean currents is influenced by the shape and position of coasts
Question 2 Multiple Choice (Single Answer)

Which of the following is not an effect of the ocean currents?

  1. They effect commerce because they keep the harbours open even during winter
  2. Water of the ocean is kept pure
  3. Warm equatorial currents lower the temperature of the places through which they pass
  4. They do not effect rainfall over the coasts
Question 3 Multiple Choice (Single Answer)

Large movements of ocean water from places of warm temperature to low temperature or vice versa are ______________.

  1. Drifts
  2. Ocean currents
  3. Waves
  4. Tides
Question 4 Multiple Choice (Single Answer)

Kuroshio current is available in ___________.

  1. North Pacific Ocean
  2. North Atlantic Ocean
  3. North Indian Ocean
  4. None of these
Question 5 Multiple Choice (Single Answer)

Which factors influence ocean currents?

  1. Earth's rotation
  2. Winds across ocean
  3. Density of water
  4. All of the above
Question 6 Multiple Choice (Single Answer)

Which of the following statements about the ocean currents is not correct?

  1. Currents are rivers in the sea
  2. The water moves forward and the currents are felt at the depth as well
  3. They are caused by the unequal temperature of equatorial and polar regions
  4. Generally there is scanty rainfall over the coastal areas where the warm currents flow
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