Your answers are all correct!
Epithelial tissue covers your body as well as lines your internal organs
Have a good day
If you are talking about chewing tobacco then it would be gum cancer
Seeing a psychologist or counsellor to work towards the problem. the teen should surround himself or herself with friends and loved ones. get a hobby or do sports to destress.
It is important to prevent or manage teen depression so it will not affect future activities such as further education and job which are stressful and can worsen depression.