Answer:
Okay, since you have multiple questions here, I will add the answers and some explanations, if applicable.
1. What should you do if you find... The best answer here would be: Speak up and ask for them to be added. Basically, this will make you an active participant in the welfare of your community, instead of just an espectator. Remember that being an active participant will also help you connect and become engaged in your community.
2. What is the minimum number of days per week... The best answer here would indeed be 3 days a week, but beyond that minimum, it would mostly also depend on what the purpose is. Three days ensures your remain healthy and active. More than that becomes an active engagement in exercizing activities and can be used, for example for dynamic weight-loss programs.
3. The best answer to this particular question would be: Children would get permission before watching videos. Of course, if parents are supervising what their children watch online, then the obvious result here would be for them to ask permission first; otherwise they would not be able to access the material.
4. Since we are talking about a healthy environment, then, the best answer would be: Touch free faucets and towel dispensers. The reason is that in this way, the transmission of bacteria and other microorganisms, through touch, would be much diminished and thus, it would help to establish a healthier environment.
