Introduction In recent years, the cigarette industry has come under attack for a variety of issues, including second-hand smoke. It is important to examine the effect this second-hand smoke has on non-smokers. Preventable Killer The use of tobacco "remains the leading preventable c...

Coal Power Currently America's main source of electric energy is coal, which accounts for 1.97 PW per year or 52% of America's electric energy. We are currently extremely dependent on it for a number of different reasons. Coal is a reliable source of energy. Which is very abundant in th...