Answer: Yes the ozone layer sits at the top to protect us from harmful UV rays from the sun.
Explanation:
If there is no response and not breathing or not breathing normally, position the infant on his or her back and begin CPR. Give 30 gentle chest compressions at the rate of 100-120/minute. Use two or three fingers in the center of the chest just below the nipples.
source :CPR Instructions For Infants and Small Children
depts.washington.edu/learncpr/infantcpr.html
A bacterial STDs are caused by bacteria that enters the body either through skin contact or body fluids. a viral std is a sexually transmitted infection that is caused by a virus. unlike bacteria viruses these are not living organisms and need a host cell in order to replicate and survive. some of the most common vital stds are HPV, herpes, hepatitis and HIV these cannot be cured however although a virus will remain in the body for life symptoms of the virus that might be not be present at all times.
I think it is all of the above