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PhysicsDefining Energy
The concept of energy has fascinated scientists and philosophers for thousands of years. This module...
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Earth ScienceNatural Hazards and Risk
Tornadoes, earthquakes, tsunamis, and volcanic activity are all examples of natural hazards with the potential...
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BiologyTaxonomy I
Modern taxonomy officially began in 1758 with Systema Naturae, the classic work by Carolus Linnaeus....
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