Which of the Following Is True

Multiple Choice

Which of the following is true?

A) seventy-five percent of the atmosphere occurs below 10,700 m.
B) ninety percent of the atmosphere is below 1000 m.
C) all but 0.001 percent of the atmosphere is accounted for within the troposphere.
D) ninety percent of the atmosphere is above the tropopause at 16,000 m.
E) air pressure does not change with altitude.