Exercise programs and sports activities can differ in number of participants from one person doing an activity like jogging or swimming, to hundreds of participants at a track meet. Structure can be loose in solo exercises where you can set your own pace, or be very strict in most competitive sports. Competition varies from none to highly competitive, and can be on an individual or team level. More complex sports and activities can present a high skill level.
Bacteria is something else that you would need to know
Answer:
It could cause skin cancer due to the cause of the ink from the tattoos going into your body and affect the skin have have a highly risk of getting skin cancer.
True. Most do not transmit the disease
The answer is, "Chronic use of alcohol".