Answer. Form of exercise.
Explanation: Tennis is a good exercise and good for interacting with others. Also can be for all ages
False because mainstream smoke is defined as smoke from a cigarette or pipe. Second hand smoke is smoke that has been inhaled by someone then exhaled, making you the "second" one to breath it :)
Illegal activities are taking place, I would say this as for example you don’t know if the person is dangerous or is armed and you could be arrested as you may look like you are involved in it
A. True smoking can kill you and eating heallthy foods helps you live longer
7000 chemicals. ..........