At what point on a roller coaster is the gravitational potential energy (gpe) the lowest? question 7 options: at the top of the highest drop at the lowest point of the roller coaster while on the decline while on the incline

According to the article, what valid claim came from the national research council? there is no association between fluoride exposure and increased cancer risk in humans. there is a possible link between fluoride exposure and increased cancer risk in humans. there is a definite link between fluoride exposure and increased cancer risk in humans.