2. A study of plaque buildup on teeth used three randomly assigned groups of people who brushed their teeth
twice a day for a year. People in Group 1 used the same
toothbrush all year. People in Group 2 used the same
toothbrush all year but sterilized it each month. People
in Group 3 used a new, sterile toothbrush each month.
At the end of the year, people in Groups 1 and 2 had
the same amount of plaque buildup as each other, while
people in Group 3 had less plaque buildup.
Which one of the following, if true, most helps to explain
the relative amounts of plaque buildup found in the three groups

18+220=238 fruits together

explanation:

but are you serious?

answer: it’s up to you!

explanation: believe what you want to believe unless that belief is damaging to someone/the environment.though, there’s no science to support the existence of ghosts. sometimes believing in a spirit such as a ghost can provide some comfort to ones self as they believe that their relatives are always watching over them and protecting them. yet believing in such spirits can make one feel paranoid as they believe someone is always watching and no matter how alone you feel there’s always someone there just watching, unable to interact.