Answer:
30 is considered a single cycle
The only one that would make sense not doing is breathing in slowly because you want the medicine to go in quickly to the airways and not get stuck in your mouth.
Answer:
D.
Explanation:
this is confusing but yes the answer is D. because no oxygen to the brain after 2 mins will have some damage but at 10 min you will have very bad brain damage
C is not a response of stress.
