Quantitative and systemic data
He can make use of an Air Quality Monitor through AirBeam. I no options to chose from so i take it that it isnt a multiple choice question. If im incorrect im sorry
A mammals need for oxygen effects their heart rate because there could be some cases where they're in lack of oxygen causing them to be literally ' out of breath ' . Like climbing a mountain. The higher you go the less oxygen.
Hope I helped !!11!!!!! :)
this is not the place to ask that
