Answer:
I honestly think it's C
Explanation:
because if they are having fun they wouldn't realise they are doing something bad.
Answer:
True
Explanation:
Cigarette companies add ammonia to cigarettes to boost the impact of the nicotine.
Gases can be produced by normal flora (bacteria that normally lives in the intestines) and harmful bacteria as well.
I think the three components are: environment, personal choices, and habits.