How much nitrogen occupies a volume of air near the Earth's surface?

A. 78%
B. 84%
C. 43%
D. 21%


Answer: A

Environmental & Atmospheric Sciences

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During the height of the Pleistocene ice age, the glaciers extended as far south as the Ohio and Missouri river systems

Indicate whether the statement is true or false

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At constant temperature the pressure on a 10.0 L sample of gas is changed from 1140 torr to 1.00 atm. What is the new volume of the gas sample?

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What was discovered that was strong evidence for that big bang theory

What will be an ideal response?

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