Tides are caused by the location of the earth, sun and moon.
B or d.... hope this helps:)
The nucleolus is the central support structure
Answer: Several types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence led scientists to look again at Wegener's hypothesis of continental drift.
Explanation: