What Is Sea Level?
We say that Mount McKinley in Alaska is 20,320 feet above sea level, or that Death Valley, in California, is 282 feet below sea level. And we say that the surface of...
Read MoreWe say that Mount McKinley in Alaska is 20,320 feet above sea level, or that Death Valley, in California, is 282 feet below sea level. And we say that the surface of...
Read MoreNot far below the surface of the land there is a zone where the soil is saturated (filled) with water. The topmost level of this saturated zone is called the water...
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