Earth orbits the Sun because there is a:
a) strong magnetic interaction between the Sun and the Earth. the gravitational interaction between the Sun and the Earth is small.
b) gravitational pull from the Sun on the Earth. The Sun pulls the Earth in the direction of the Earth's orbit path.
c) gravitational pulls from the Sun on the Earth. the Earth is pulled towards the sun, rather than going off in a straight line.
d)gravitational force from the Sun on the Earth. The Sun part is the Earth away so it does not crash into the sun.
