10. Composite volcanoes a. are sometimes called layered
volcanoes.
b. have narrow bases.
c. have less steep slopes as they approach
the top
d. are one of the least common
volcanoes.

Composite volcanoes. ... They are typically steep-sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8,000 feet above their bases.Muh. 28, 1432 AH

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

the answer your looking for is c).