PLS HELP ME In order for a sprinter to maintain good balance they must

A) work out their upper and lower body

B) run a lot of springs

C) make sure they train as a long distance runner as well

D) a eat a good diet​

Scientists believe that differences in cause hot, plastic-like rock in the asthenosphere to rise toward earth's surface. a. density c. weight b. magnetism d. composition select the best answer from the choices provided