Why do many communities prohibit alcohol possession at school-sponsored social or sporting events?

to prevent underage drinking
to discourage local alcohol sales
to promote athletic habits and wellness
to create a more academic atmosphere

Viruses can cause the following, check all that apply. a. sore throat b. measles c. ear infection d. flu e. chicken pox

Which of the following represents the results of a review of well-controlled studies of vitamin c supplementation on the resistance to, and recovery from, colds? there was a reduction in the duration of colds by 50% on the average. there was a slight effect on reducing the duration and severity of colds for people taking vitamin c supplements. there was a significant reduction in the duration of colds in people who consumed at least one gram a day. there was a significant reduction in the number of colds only in people who consumed > three grams per day.

Wich technque is not recommended for use as a supporting detail