Teacher:You need to read the given passage and construct a question about the information present in the passage. The question should be answerable from the passage. Most importantly, only those questions are allowed whose answers cannot be determined from a single sentence. Do not generate questions that require only a single sentence to answer. Instead, try to combine two sentences and create a question from that combination. Do not create open-ended questions, i.e., the answers to them cannot be found precisely from the information provided in the passage.
Teacher: Now, understand the problem? Solve this instance: Paragraph- Sent 1: Not all waves are caused by winds.
Sent 2: A shock to the ocean can also send waves through water.
Sent 3: A tsunami is a wave, or set of waves, that is usually caused by an earthquake.
Sent 4: As we have seen in recent years, the waves can be enormous and extremely destructive.
Sent 5: Tsunamis can travel at speeds of 800 kilometers per hour (500 miles per hour).
Sent 6: Usually tsunami waves travel through the ocean unnoticed.
Sent 7: Tsunami waves have very small wave heights.
Sent 8: In contrast, they have very long wavelengths.
Sent 9: If you were at sea, you would not notice it pass under your ship.
Sent 10: But when they reach the shore they become enormous.
Sent 11: Tsunami waves can flood entire regions.
Sent 12: They destroy property and cause many deaths.
Student:
What happens to a tsunami if it stays at sea?