What is the weight of water (in metric tonnes) of annual rainfall falling there on a hectare of land?

Consider the following for the next two (02) items that follow :<br>The annual rainfall at a place is 40 cm. The weight of water is 1 metric tonne per cubic meter.

  1. A. 40
  2. B. 400
  3. C. 4000
  4. D. 40000

Correct Answer: C. 4000

Explanation

The volume of rainfall per hectare is 4000 m^3. Since 1 cubic meter of water weighs 1 metric tonne, the total weight is 4000 \times 1 = 4000 metric tonnes.

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