Answers

2015-10-20T11:20:04+05:30
From the mouth of anothet person or from the oxygen cylinders .
0
2015-10-20T20:10:41+05:30
From mouth of any other person or From oxygen for gas cylinders a person can get supply of oxygen for ARTIFICIAL RESPIRATION.

hope this may help you! !!!!!!!!!
1 5 1