Question

what evidence do scientists use to explain how the solar system formed?
a all the planets were a result of solar flares from the sun.
b all the planets are made of the same material, mainly helium.
c all the planets orbit in an elliptical pattern in the same direction.
d all the planets were a result of molecules that were pushed together by gravity.

Explanation:

The fact that planets orbit in an elliptical pattern in the same direction supports the nebular hypothesis of solar - system formation.

Answer:

C. All the planets orbit in an elliptical pattern in the same direction