Being a living example of a tobacco-free lifestyle can
a.
prevent others from trying smoking
b.
convince friends to stop smoking
c.
make others around you more healthy
d.
all of the above

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d