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Earth ScienceOrigins of Plate Tectonic Theory
The theory of continental drift was the first step toward plate tectonic theory, which became...
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Scientists and ResearchBernardo Houssay
Dr. Bernardo Houssay was a pioneering researcher of the endocrine system, the system of glands...
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Earth ScienceHistory of Earth's Atmosphere II
The composition of Earth’s atmosphere has evolved over time. This module examines how Earth came...
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