Unprotected sex, dirty needles and occasionally through blood transfusions are the majors talked about.
Snus or smokeless tobacco are products that contain nicotine chemicals that activate addiction and dependency synapses within the brain. Smoking products that do involve chewing and sniffing are still harmless to a person's health and may cause several diseases like mouth cancer and respiratory ailments.
<span>B) filtering the blood to removes wastes is the answer.</span>