Blood pH may become unbalanced if the rate of breathing is too fast or too slow, and for example, blood pH is critical for regulating the binding and release of oxygen from hemoglobin. Given these facts, something critical for regulating oxygen from hemoglobin may become unbalanced if breathing is what among the following options:
- major threat to health
 - colder and wetter
 - too fast or too slow
 - too hot and heavy
 - a lot of human deaths
 - too loud and soft
 - deadly and devastating
 - too warm and cold


 

   too fast or too slow      