C Which statement describes Down syndrome?
O It is a chromosomal abnormality.
O It causes individuals to be taller than average.
O It can be passed to other siblings.
Olt is preventable by exercise and a healthy 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