Can someone check my answers

1. according to the national clearing house for alcohol and drug information (ncadi), most children under the age of , who do not participate in drug and alcohol abuse, is virtually certain to never do so.
20
21
23
19
2. the average age when youth first try alcohol is__ years for boys and __ years for girls. the average age at which americans begin drinking regularly is 15.9 years old.
9 and 12
11 and 13
10 and 15
16 and 18
3. is the addictive chemical found in tobacco.
tar
nicotine
charcoal
all of the above
4. although the withdrawal symptoms are extremely challenging, millions of americans have “kicked the habit” and live happy, smoke-free lives.
true
false
5. mood “swings”, personality change, irresponsible behavior, depression, poor judgment, low self-esteem, negative attitude are all symptoms of drug abuse.
true
false
6. people who abuse drugs usually live long and healthy lives because they are “stress” free.
true
false
7. many teens who give into peer pressure and try cigarettes end up addicted and habitual smokes for years to follow.
true
false
8. changes to dress style, discipline problems, new friends who are disinterested in school or family related activities are all considered changes associated with drug abuse.
physical
social
minor
rare
9. an early age of drinking onset is not usually associated with alcohol-related violence.
true
false
10. about how many teens are in and out alcoholics