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1.1: مقدمة للطبعة الثانية - علوم الأرض أكثر

1.1: مقدمة للطبعة الثانية - علوم الأرض

At first, it was simply the excitement of scientific discovery: that the Pacific Northwest, where I live, was wracked by great earthquakes in its recent past. Geological Survey held meetings and workshops to debate the possibility of catastrophic earthquakes beneath the magnificent mountains and verdant valleys of the land of Lewis and Clark.

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