Fact 1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow.

Fact 2: If Someone Is Hyperventilating Hyperventilation is caused by breathing too deeply, too fast.

Given the two facts above, answer the question "Blood pH may become unbalanced if someone is " with the following options: 
- digesting
 - They may not survive.
 - hyperventilating
 - smoking tobacco
 - sleeping
 - sweating
 - major threat to health
 - consuming


 

   hyperventilating      