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| Earthquakes are one of the most terrible kinds of n __1__ disaster. We can't p __2__ them, and we don't know when they will h __3__ . This makes earthquakes very d __4__ . Recently, there have been big earthquakes in China, India and Japan. What c __5__ earthquake? Well, all the countries and oceans on the earth are sitting on large plates which surround the earth. These plates fit together like a big puzzle, and they move around. Earthquakes happen when two plates slide against each o __6__ . The earth moves up or d __7__ , like an ocean wave. We don't know when the e __8__ will happen. But we can do s __9__ to keep ourselves s __10__ . We can make tall buildings and houses stronger. And we must learn what to do if there is an earthquake. |