Answer:
As air pressure decreases oxygen continues to account for about 21% of the gasses in the air as it does at sea level. But, there is less oxygen because there is less of all of the air's gasses
Answer:
Rhyolite has a density of 2.5 g/cm³, while Basalt has a density of 3 g/cm³. So from that information, Rhyolite has a lower density. I hope this helps!
Explanation:
Movement of particles from a region of a high concentration to a region of low concentration
