Steven, a drug abuser, is released from a clinic. he is free of drugs, and has sworn never to take drugs again. he returns to his old neighborhood. you predict that within six months, steven will

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.