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Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater
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How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?
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Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems
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Astudent makes a microscope using an objective lens and an eyepieceif she moves the lenses closer to...
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