Answer:
Individuals with access to water with no fluoride added.
Explanation:
When we want to do an experiment we must establish which will be the experimental group (one where the factor tested in the experiment is applied) and a control group (one that was set exactly the same as the experimental group but the factor tested in the experiment was not applied). In the case shown in the question above, the student wants to develop an experiment that tests whether fluoridated water is effective in preventing tooth decay.
This student's experimental group is a group of people who consume water with the addition of fluor (factor tested in the experiment) in their composition, whereas their control group will be a group of people who do not consume water with the addition of fluor in their composition.
Answer:
Occipital Lobes
Explanation:
All of this was for you it was easy I solved it in 15 seconds, BTW You're Welcome
;D
Because it is to prevent <span>is to injury and muscle strain</span>
None of these are really health risks.
but best choice seems to be b. Discrimination / Bullying is known to cause social problems and can develop depression. if that helps.
