soundness testing Flashcards
there is no new water on earth true or false and why
wate goes through a constant cycle meaning its always being recycled
what is transpiration
water moves through a plant until its leaves and evaporates into the atmosphere
what is precipitation
another word for rain. water vapor condenses and precipitates back onto earth as rain, hail or snow
how much percent of all water is fresh water
3%
how much percent of all the world water do people use
0.9% which is 1350 trillion litres
where is soft water found
north of England and soft water has a PH of 7 or below
where is hard water found
south of England and hard water has a PH of 7+
how is water distributed (2 ways)
gravity distribution where a reservoir sits high and gravity pulls the water.
pumped distribution where water is sent up a tower and is then pulled down via gravity