Doctors say it is uncertain, but possible causes are genetics and the enviroment.
Answer:
1.C 2. D
Explanation:
don't take my word for it
Answer:
Explanation:
I think this can answer your question.
Answer:
True
Explanation: Chest compressions are the same for both infants and adults it's a 30:2 (30 chest compressions):(2 rescue breaths) ratio