I'm definitely not a parent, but the best things I'd do are among the following
Shielding their eyes from things on the internet, such as adult sites, etc.
Keeping a nice sleep schedule both to calm me and he/she down for school.
Keeping up with their basic needs such as food, water, shelter, etc.
Teach them respect through anyway (except for disciplinary esc action).
A diet higher in lean protein and less processed carbs, would be a positive change to prevent diabetes with exercise.
Well, maybe they can be. In order to keep he/she safe.
B. It uses closed paddles instead of stringed racquets
The answer is B. chemicals.
the reason its b is because A= bacteria but u have to clean the bacteria in the water so its not A and its not c. becouse that will be just turning the ice into water .so the answer is b. becouse we use chemicals everyday to get rid of bacteria and waste