THAT PART of the earth’s surface occupied by water is evaluated at more than 147,959,620 square miles, or over 94 billion acres. This liquid mass has a volume of 2,250,000,000 cubic miles and would form a sphere with a diameter of over 2,000 miles which would weigh 3 quintillion tons. And in order to understand this number, one must realize that a quintillion is to a billion what a billion is to one, or in other words that there are as many billions in a quintillion as there are units in a billion. And this mass of liquid is more or less equal to the quantity of water that all the rivers of
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