More than 500 chemicals in ETS are cancer causing carcinogens

Researchers have identified over 4,000 individual constituents in ETS, many of which are known or suspected human carcinogens and toxic agents: benzene, 1,3-butadiene, polycyclic aromatic hydrocarbons, N-nitrosamines, nicotine, and particulate matter are just some of the toxic chemicals released

Explanation:

True

you can find happiness by thinking about your past that has full of happiness.

explanation:

walk away. if anything happens, call the police.