Question

on october 2, 2018 a magnitude 7.5 earthquake caused this kind of wave, and these events together killed over a thousand people in palu, indonesia. these waves are caused by friction between wind and water that form at the surface of water. these waves consist of flatter, rounded wave crests and troughs that are found away from the area where waves are generated by wind. swells tsunamis intermediate waves

Explanation:

• Tsunamis are often caused by earthquakes (as in the first description).
• Wind - water friction causes intermediate waves (second description).
• Swells have flatter, rounded crests and are away from wave - generation area (third description).

Answer:

1. tsunamis
2. intermediate waves
3. swells