Which of these statements about the amount of atmospheric O₂ in Denver, Colorado located approximately 1 mile above sea level is true? In Denver ____?
A.) The percentage of atmospheric O₂ is higher than at sea level
B.) The partial pressure of the atmospheric O₂ is higher than at sea level
C.) The percentage of atmospheric O₂ is lower than at sea level
D.) The partial pressure of the atmospheric O₂ is lower than at sea level