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Tsunamis: The Powerful Natural Force

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Questions and Answers

What natural force can cause tsunamis?

Volcanic eruptions (correct)

Droughts

Snowstorms

Tornadoes

How are most tsunamis triggered?

Wildfires

Blizzards

Hurricanes

Earthquakes (correct)

What happens when tectonic plates get stuck and suddenly shift?

They disappear completely

They become indestructible

They shrink in size

Pressure builds up and they move into a new position (correct)

What creates big holes in the ocean floor that lead to tsunamis?

Movement of tectonic plates (C) Signup and view all the answers

Why do tsunami waves grow in height as they approach shallower water?

Because the top of each wave is very short in deep water (B) Signup and view all the answers

Which of the following natural disasters can also trigger a tsunami, according to the text?

Landslides (C) Signup and view all the answers

What is one of the key characteristics of a tsunami as described in the text?

It travels quickly and may appear as a towering wall of water (D) Signup and view all the answers

Which ocean is mentioned in the text as a common area for tsunamis to occur?

Pacific Ocean (A) Signup and view all the answers

What is the purpose of the Pacific Tsunami Warning System as mentioned in the text?

To track earthquakes that may lead to tsunamis and warn people in advance (C) Signup and view all the answers

In which region did the biggest tsunami ever recorded occur?

Alaska (D) Signup and view all the answers

How often do massive, really destructive tsunamis happen according to the text?

About every fifteen years (A) Signup and view all the answers

Why does the text suggest that you probably don't need to worry too much about tsunamis?

Because they are rare events, with only about two happening every year (D) Signup and view all the answers