mirror: 初始快照
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<html >
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<head >
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<title >Because of the vast amount of water Earth is called the blue planet</title>
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</head>
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<body >
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<mbp:pagebreak/>
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<tei-ms:entry>
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<tei-ms:orth><h1 align="center" >Earth</h1>
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</tei-ms:orth>
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</tei-ms:entry>
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<div align="center" title="Because of the vast amount of water, Earth is called the blue planet."> <img src="earth3.png" ></div>
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<p ><b class="first" >T</b>hat it teems with life makes Earth a precious oddity
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among the planets-although just how off, scientists cannot say. Certainly the
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conditions that made life possible were sensitive to the planet's surface
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temperature and therefore to its distance from the sun.</p>
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<p >Abundant liquid water was critical to the planet's evolution. This water
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moderated temperatures, eroded rocks, dissolved minerals and supported complex
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chemical reactions, some of which yielded single-celled life close to four
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billion years ago. Macroscopic animals started proliferating only around 600
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million years ago, eons after photosynthesis enriched the atmosphere with oxygen.</p>
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<p >Earth's large moon probably formed from the debris after a collision between
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early Earth and another huge body. Because the moon and sun appear the same size
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from Earth, or planet is the only one to witness the beauty of the sun's corona
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during a total eclipse.</p>
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</body>
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</html>
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