Select from:
[A]. magma.
[B]. plates.
[C]. two.
[D]. algae.
[E]. sun.
[F]. earth.
[G]. moon.
[H]. spring.
Q: Fact 1: The gravitational pull of the Moon on Earth 's oceans causes the tides. Fact 2: Gravity causes tides. Given the two facts above, what forms tides?
A:
[G].