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THE EARTH
The superficial area of the earth Is 196,950,000 square
miles— 1 39,440,000square miles of water and 57,510,000 sq.
miles of land.
The equatorial circumference of the earth is 24,902 miles;
the meridional circumference, 24,860 miles.
The earth is divided into 360 degrees. The length of one
degree of longitude is 69-121 miles. Each degree of longitude
represents four minutes of time. The lines of longitude are
termed"Meridians ".
The diameter of the earth at the equator is 7,926-677 miles,
and through the poles 7,899-988 miles.
The weight of the earth has been estimated at six sextillion,
592 quintillion tons, not includingtheatmosphere,whose weight
has been estimated at more than five quadrillion short tons.
The average elevation of the land above sea level is approx
imately 2,800 feet.
The average depth of the ocean below sea level is 1 2,500
feet.
The deepest place in the ocean yet found is in the Mindinao,
between the Philippines and Japan, where soundings of 34,210
feet have been reported.
The highest mountain is Mount Everest, in the Himalayas,
29,141 feet.
Over 2,000,000,000(two billions) of people live on the globe
and speak actually 2,800 different languages.
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