SOLUTION: The Sahara Desert covers about 8.3 * 10(13) square feet.
The average depth of the sand in the Sahara Desert is 200 feet.
A grain of sand has a volume of approximately 1.3 * 10(-9
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Question 89628: The Sahara Desert covers about 8.3 * 10(13) square feet.
The average depth of the sand in the Sahara Desert is 200 feet.
A grain of sand has a volume of approximately 1.3 * 10(-9) cubic feet.
Which of the follwing is the best estimate of the number of grains of sand in the Sahara Desert.
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
grains of sand = (area) * (depth) / (volume of grain)
= (8.3 * 10^(13)) * (200) / (1/3 * 10^(-9))
= 4.98 * 10^(25) grains
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