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geology

(Encyclopedia) geology, science of the earth's history, composition, and structure, and the associated processes. It draws upon chemistry, biology, physics, astronomy, and mathematics (notably…

A Warming Ocean

Global warming affects the Earth’s oceans and its wildlife by Liz Olson Related Links Quiz: Global Warming Top Carbon Dioxide Emitters The…

Earthquake in Turkey

by Borgna Brunner Learn earthquake basics in Earthquakes 101. Earthquake epicenter: near Izmit, an industrial city about 55 miles east of Istanbul on the Sea of Marmara. Aftershocks: at least…

era

(Encyclopedia) era, period of historic time. In geology, it is the name applied to large divisions of geological process, e.g., Paleozoic era (see geology). In chronology an era is a period reckoned…

soil

(Encyclopedia) soil, surface layer of the earth, composed of fine rock material disintegrated by geological processes; and humus, the organic remains of decomposed vegetation. In agriculture, soil is…

How High is a Mountain?

The Question: How high must a mountain be to be technically considered a "mountain"? The Answer: According to our dictionary, a mountain is "a natural elevation of the earth's surface rising…

Youngest Ocean on Earth

The Question: What is the youngest ocean on Earth? The Answer: The Atlantic Ocean is the planet's youngest ocean. It was believed to have been created by the splitting apart of a vast super…

Oceans or Seas?

The Question: What is the difference between an "ocean" and a "sea"? The Answer: According to our encyclopedia the words are synonymous. In addition, the word "sea" can also be used to…

Writing Well: Full Credit

Full CreditWriting WellWriting Across the CurriculumDifferent Strokes for Different FolksPlaying with the Big KidsFull CreditTwo's Company, Three's a Crowd— Unless You're Writing Writer's Block To…