The study of how the moon causes tides in earth's oceans represents an intersection of which two fields of science?
a. geology and meteorology
b. allergy and oceanography
c. astronomy & meteorology
d. astronomy & oceanography

Moon tides or lunar tides are caused by the pull of gravity between the moon and earth. The moon will exert a gravitational pull on earth and the earth also pulls the moon towards itself. One of the results is that the moon is near the earth and the other one, the oceans tide. Even though the earth can hold any object within ts proximity, the ocean is partly attracted due to its liquid property. At night, the ocean tends to be attracted to the moon by creating a bulge and assigning it as ‘high tide’. This is due to the strong gravitational pull of th moon to the earth. The answer is letter D.