Question

At higher altitudes would there be more or less
oxygen available to breathe?
a. Less oxygen is available at higher altitudes.
b. More oxygen is available at higher altitudes.

Answer 1

Answer: less oxygen available at higher altitudes

Explanation:

The higher in elevation you get, the lower the air pressure, allowing oxygen atoms to spread out farther, therefore making available oxygen less.

Answer 2

LESS OXYGEN

the higher up you get the higher the air pressure is