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BiologyPhotosynthesis I
Through photosynthesis, plants harvest energy from the sun to produce oxygen and sugar, the basic...
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Earth ScienceThe Phosphorus Cycle
All living organisms need phosphorous to survive and grow. This module describes forms that phosphorous...
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ChemistryKinetic-Molecular Theory
Over four hundred years, scientists including Rudolf Clausius and James Clerk Maxwell developed the kinetic-molecular...
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