pick from the following.
(A). Oxygen;
(B). cycles;
(C). wind;
(D). Energy.;
(E). energy;
(F). Gravity;
(G). h2o;
(H). Atmosphere;

Fact 1: Gravity pulls objects towards planets. Fact 2: Gravity is the force that keeps planets in orbit around the sun. Given the two facts above, what pulls objects around the sun?
Answer:
(F).