Lower School Science

Nov172011

POSTED AT 10:48 AM

For Pennsylvania, the annual precipitation ranges from 30 to 60 inches per year with a mean rainfall of approximately 42 inches. Of this approximately, 22 inches or more is returned to the atmosphere via transpiration or evaporation, 13 inches infiltrates into the groundwater system, and direct runoff accounts for approximately 7 inches of water.

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sin cara

so how much water do the make in a year? lol

11/20/2011 7:22:15 AM
ash

This is a post a very clear diagram that helps me understand were we get our water and were it goes.

11/30/2011 1:09:55 PM
awsome man

I never knew that there was so much rain in the hemeshpere

11/30/2011 1:47:38 PM

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Lower School Science

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