Rate of rainfall is expressed in _____________

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Rate of rainfall is expressed in _____________

(a) Centimeters

(b) Millimeters

(c) Meters

(d) Kilometers

The question was asked by my school teacher while I was bunking the class.

This interesting question is from Rainfall and its Measurement in portion Hydro Electric Power Plant of Energy Engineering

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The correct choice is (a) Centimeters

To elaborate: The rate of rainfall is expressed in centimeters of water during a given period of time. One centimeter rainfall is the quantity of water collected on a certain area due to rainfall which becomes one centimeter in height.

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