5 Marks

    5 x 5 = 25
  1. Write a paragraph on the origin of oceans.

  2. Write a note on continental shelf and continental slope

  3. What do you mean by ocean currents? Explain its types.

  4. 71% of the earth is covered by water, but very little can be used by humans. Why?

  5. What will happen if the seas and oceans contain only fresh water?

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