Question: . Global rainfall has been estimated to average about 1 m of water per year across the entire 5.1 e14 m2 of the earth's surface.

. Global rainfall has been estimated to average about 1 m of water per year across the entire 5.1 e14 m2 of the earth's surface. Find the energy required to cause that much water to evaporate each year. How does this number compare to the estimated 1987 world energy consumption of 3.3 e17 kJ? (NOTE: energy required to vaporize 1 kg water at 15C is 2465 kJ)
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