The gravitational pull of the moon on earth 's oceans causes the tides.
Tides create current.
The gravitational pull of the moon on earth's ocean contributes to ocean currents.
If the moon was not present, what would happen to ocean currents?
Options:
A. erosion
B. Movement
C. decrease
D. summer end
E. imbalanced
F. flooding
G. watershred
H. rivers