Who used arsenic as a treatment for toothaches?

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

Which term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

Is it rare to have scoliosis and double jointed shoulders?