Final answer:
Student A's explanation recognizes the influence of the sea level on tides, while Student B's explanation considers the gravitational forces and tidal bulges caused by the Moon. Student B's explanation is more technically correct.
Step-by-step explanation:
Student A says that the tide comes in and goes out based on differences in the height of the sea level. Student B says that the changing tides are caused by Earth rotating into and out of the tidal bulges. Both explanations have some truth to them.
Student A's explanation recognizes that the tide is influenced by the height of the ocean's surface. As Earth rotates, an observer is carried into regions of deeper or shallower water, causing the tide to come in or go out.
Student B's explanation focuses on the tidal bulges caused by the Moon's gravitational force. As Earth rotates, it passes through these bulges, resulting in high and low tides.
While both explanations have merit, Student B's explanation is more technically correct as it takes into account the gravitational forces and tidal bulges caused by the Moon.