Annual rainfall at a place measures 40 cm. Water weighs 1 metric ton per cubic metre. What is the weight (in metric tons) of the water of annual rainfall in one hectare of land?
A.40
B.400
C.4000✓ Correct
D.40000
Explanation
Volume of rain water per hectare = 4000 cubic metres. Weight = 4000 × 1 = 4000 metric tons.
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