Quiz · Earthquakes Under the Sea

Question 1What is the main purpose of this talk?

To explain how ships can avoid storms at sea To compare earthquakes on land with floods near coasts To describe how sensors on the sea floor were invented To explain how undersea earthquakes cause huge waves and how people get warnings

Question 2How fast do the giant plates under the sea move?

A few metres every single day Only a few centimetres every year Many kilometres in just one month A few centimetres every single hour

Question 3What happens to the waves when they reach shallow water near a coast?

They become almost impossible for ships to notice They stop and travel back across the ocean They slow down and rise up into walls of water They shake the entire column of water below