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2007-07-20 23:27:12 · 9 answers · asked by kissypuppys 3 in Science & Mathematics Weather

9 answers

25 trillion - give or take.

Raindrops vary in size from 0.4mm³ in light drizzle to 300mm³ in a heavy downpour [1], that means there's anywhere between 3,000 and 2.5 million drops per litre. If we take 20mm³ as being an average size...

For 1mm of rain to fall and cover an area of one square metre would require 50,000 drops of rain, the same rainfall over 1 square kilometre would require 50 billion drops of rain.

If the rainfall covered an area of say 100 sqaure kilometres (40 square miles) and 5mm (one fifth of an inch) or rain fell then there would be 25 trillion drops of rain.



[1] "Liquid-Water Precipitation." New Book of Popular Science, Deluxe Library ed. vol. 2. Danbury, CT: Grolier, 1998: 167 and Christian, Spencer, & Felix Antonia. Can it Really Rain Frogs? New York: Wiley, 1997: 33.

2007-07-21 10:05:24 · answer #1 · answered by Trevor 7 · 0 0

About the same number as there are stars in the sky,
grains of sand on a beach, or heartbeats in a lifetime.

2007-07-20 23:40:43 · answer #2 · answered by GeneL 7 · 1 0

also depends on the width of the cloud

2007-07-20 23:34:38 · answer #3 · answered by mojo jojo 1 · 1 0

depends on how long it falls and how heavy it is.. how did you come up with that question? ha*

2007-07-20 23:32:12 · answer #4 · answered by neogiee 2 · 0 1

HOW MUCH RAIN?

2007-07-20 23:34:09 · answer #5 · answered by gary m 1 · 0 1

its all but impossible to count them all. My guess would be trillions.....

2007-07-20 23:35:04 · answer #6 · answered by Anonymous · 1 0

as many pebbles as there are on the beach...

2007-07-20 23:32:07 · answer #7 · answered by roberta 3 · 1 0

unknowable.

2007-07-20 23:34:54 · answer #8 · answered by Anonymous · 0 1

22,222,222,000,000

2007-07-20 23:36:08 · answer #9 · answered by ?u?ube 3 · 0 1

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