He was talking about you I think it means
One can reduce the risk of Environmental tobacco smoke(ETS) by visiting places that are smoke-free.
Environmental tobacco smoke (ETS), or second-hand smoke, is the air polluted by tobacco smoke.
ETS consists of mainstream smoke (smoke exhaled from the smoker's lungs) and side stream smoke (smoke from the lit end of a cigarette, pipe, or cigar).
Conventional smoke exhaled by the smoker has a lower concentration of carcinogens, nicotine and tar. For this reason, side-stream smoke is more dangerous than mainstream smoke. ETS from tobacco, cigars, and pipes contain over 4,000 chemical compounds.
Over 50 of these chemicals are carcinogens. Several studies have shown that infants exposed to ETS are more likely to develop asthma than their unexposed peers. Inhaling ETS poses a serious health hazard.
Health Risks for Non-smokers
Second-hand smoke kills about 3,000 people each year from lung cancer. ETS causes eye irritation, headaches, ear infections, and coughing in people of all ages. It aggravates asthma and other respiratory disorders and increases the risk of coronary artery disease.
Learn more about Environmental tobacco smoke here : brainly.com/question/1544829
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Answer:
A
Explanation:
Osteogenic cells the only cells capable of the bone to undergo mitosis (which makes sense as we need bones to function normally). These kind of cells are the ones responsible of growth and repair in the body (like when you break a bone and how takes some weeks to heal is because of that ability).
The answer is C. 42% of smokers smoked their first cig in their teens.
Tissue culture is the growth in an artificial medium of cells derived from living tissue.