Blood pH may become unbalanced if the rate of breathing is too fast or too slow, and when a compound is unbalanced it becomes unbalanced and unstable. Given these facts, if the rate of breathing is too fast or too slow, what my become unstable among the following options:
- our planet
 - environment
 - state
 - all matter
 - our star
 - blood pH
 - cigarettes
 - fronts


 

      blood pH   