Quotation from: General ScienceWritten by: Bertha M. Clark |
|
The water which flows on the earth is constantly changing its form; the heat of the sun causes it to evaporate, or to become vapor, and to mingle with the atmosphere. In time, the vapor cools, condenses, and falls as snow or rain; the water which is thus returned to the earth feeds our rivers, lakes, springs, and wells, and these in turn supply water to man. When water falls upon a field, it soaks into the ground, or collects in puddles which slowly evaporate, or it runs off and drains into small streams or into rivers. That which soaks into the ground is the most valuable because it remains on the earth longest and is the purest.
|
| PREVIOUS GROUP HOME SITE HOME NEXT |
| Part of the RabbitHoleResearch Project Change Tag: ~~ 0 ~~ |