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Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.
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All of these things can block a bronchus and cause collapse of a lung except
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Biology, 23.06.2019 05:00
Na convection cycle, what causes plastic-like material to sink a. it loses heat to the crust. b. it gains heat from the crust. c. it loses heat to the outer core. d. it gains heat from the outer core.
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Every organism in an ecosystem relies on other species for survival...
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