Complete the analogy.
tidal valley is to low tide as tidal bulge is to
a) high tide
b) middle tide
c) bay of fundy
d) gravitational force

The right answer for the question that is being asked and shown above is that: "D) Gravitational force." Tidal valley is to low tide as tidal bulge is to gravitational force. This analogy usually comes out to different entrance exams. Tidal bulge are created on opposite sides of the Earth due to the moon's gravitational force and inertias counterbalance.