Quaking Earth, Racing Waves

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The author's writing style that makes his or her writing unique

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voice

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The author most likely wrote this selection to ...

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show readers the dangers of earthquakes and several types of tsunamis.

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Why did Sieh study the growth patterns of corals near the Sunda Megathrust Fault?

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to learn when past earthquakes took place and to predict future earthquakes

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The author uses imagery in paragraph 7 to illustrate...

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that coral can be shaped like a doughnut after repeated rise and fall of the ocean floor.

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According to the passage, what did scientists learn after examining samples of coral?

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Major earthquakes occurred about every 200 years.

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From the information presented in section Rising Corals, the reader can conclude that...

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Studying the growth patterns of Porites coral heads near the fault, scientists can pinpoint the dates of past earthquakes, and maybe find a pattern that would help predict future quakes.

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massive

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large

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What is the central idea of paragraphs 9-12?

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The earth's surface plates made the islands sink, which negatively affected life on the island and put people at risk.

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The violent movement of the earthquake ____ the ground upward.

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thrust

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What is the main idea of the section "What Makes the Earth Quake?"

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The lithosphere is divided into plates which push against each other and can release the stress as an earthquake.