Concept:Waves are formed by the friction of wind moving across the ocean surface, transferring energy to the water.
Explanation:Waves are the alternate rising and falling of ocean surface water.
The primary cause is wind scraping across the surface.
Stronger winds produce larger waves.
During storms, high-speed winds create huge, destructive waves.
Thus, waves originate from wind action, not gravitational pull, temperature changes, or current collisions.
Answer:A. Winds scrape across the ocean surface.