The highest point in a region is 19,281 feet above sea level. The lowest point in the region is 328 feet below sea level. (a) What is the difference in elevation between these two extreme elevations? (b) The diameter of Earth is about 8000 miles and a mile is 5280 feet. What percent of Earth's diameter is your answer to part (a) (a) The difference in elevation is feet. (b) The answer to part (a) is % of Earth's diameter.

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