What is the most likely cause of ocean waves?

A.
temperature differences in the water

B.
density differences in the water

C.
changes in sunlight

D.
surface winds

D. surface winds

The most likely cause of ocean waves is D. surface winds. Surface winds, especially strong and consistent ones, are the primary force behind the formation of ocean waves. When wind blows across the surface of the ocean, it transfers its energy to the water, creating ripples and eventually turning them into waves.

To determine the correct answer, you can think about the factors that contribute to wave formation. Typically, temperature differences in the water (A) do not play a significant role in wave generation, as they do not directly impact the motion of the water. Changes in sunlight (C) also do not directly cause waves. Density differences (B) in the water contribute to other ocean phenomena like currents and upwelling, but they are not the primary cause of wave generation.

It is important to understand the underlying science and concepts to successfully answer questions like these.