1. What inferences can you make about tsunamis based on this text?

• Tsunamis caused by shock waves are unpredictable

• Scientists can predict exactly when a tsunami will hit land

• The average tsunami is over 300 feet tall

• NYC is at risk of being hit by a tsunami

Which quote best supports the statement that tsunamis created by shock waves are unpredictable?

• "A shock wave is a strong pressure wave. It moves faster than most jets in the sky."

• "Along many coastlines, these superfast tsunamis arrived hours before the tsunami from the mound of water. But they were just as big."

• "People did not expect tsunamis from the shock wave."

• "Scientists say tsunami warning systems should be improved."

Which of the following would best help protect someone who lives in an area that is susceptible to tsunamis?

• An early warning system to let them know a tsunami was coming

• A portable weather radio

• Food and water

• Access to a basement

Which quote provides the central idea that an underwater volcano near Tongo was so powerful that it created very fast tsunamis?

• "A large tsunami can travel far across the ocean."

• "People did not expect tsunamis from the shock wave. These were a surprise."

• "A large tsunami can travel far across the ocean. It can wipe out communities thousands of miles away."

• "The wave raced across the ocean's surface. It pushed water ahead of it. That created superfast tsunamis."

1. Which change if any is needed to the following sentence: Tsunamis are caused by earthquakes volcanic eruptions and landslides.

• 1. Tsunamis are caused by earthquakes, volcanic, eruptions and landslides.

• 1. Tsunamis are caused by earthquakes, volcanic eruptions, and landslides.

• 1. Tsunamis are caused by earthquakes volcanic, eruptions and landslides.

• No change