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 MoreWhat Makes the Wind Blow? Wind is air in motion. Wind is caused mainly by the uneven heating of the air around the earth by the sun. Since the earth’s surface is made...
Read MoreWhat Is Local Mean Sea Level? Sea level is the base level for measuring elevation and depth on Earth. Because the ocean is one continuous body of water, its surface...
Read MoreWhen Did Fairs Begin? Fairs grew out of early religious festivals, when people gathered together to celebrate, and merchants would bring their goods to sell and trade....
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