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Earth Science
Ocean Currents
Ocean currents are responsible for transporting matter and energy across the ocean. They are driven...
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Earth Science
History 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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Scientists and Research
Uncovering the Mysteries of Chronic Mountain Sickness
The air has less oxygen at high altitudes, and the physiology of the body changes...
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