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Principle_4_6-8, There is evidence that life on Earth originated in the ocean Early life didn't use O2 for respiration. (anaerobic), Ocean water is in constant motion through currents Humans affect the ability of the ocean to sustain life. (OL 6), The water cycle describes the movement of water between the ocean, atmosphere, land and back to the ocean. Sun is the energy that powers the water cycle, Ocean water is in constant motion through currents Current formations (OL 1), There is evidence that life on Earth originated in the ocean The theory of evolution provides a scientific explanation for the fossil record of ancient life forms and the important role the ocean played in the evolution of life on Earth, Carbon moves between the living (biosphere) and the non- living world. This is the carbon cycle. Carbon compounds are the building blocks of life., The ocean plays a major role in the important geochemical cycles essential for life. Carbon moves between the living (biosphere) and the non- living world. This is the carbon cycle., Life started in the ocean Ocean sustains life on Earth, Biological processes depend on unique properties of water. Water is a solvent distributing minerals to the ocean, Life does not exist without water. The water cycle describes the movement of water between the ocean, atmosphere, land and back to the ocean.