Directions: Complete the given paragraph by selecting the most appropriate answer from the given options and fill blank (12).

Tidal waves are ________ (9) sea waves known as tsunamis. They are often_________ (10), destroying entire towns. Tsunamis are caused by ________ (11) movements such as earthquakes, volcanic_________ (12), or landslides. They can reach speeds up to 450 miles per hour and a height of 100 feet.