Most of the earth's oxygen occurs in the form of minerals in the crust and mantle. the oxygen that is available in the atmosphere is used primarily by plants, animals, and bacteria to perform cellular respiration. why is running out of oxygen still not a real concern?
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A60-tooth gear is connected to a 72-tooth gear.if the smaller gear turns 12 times,how many turns does the larger gear make?
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Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.
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Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day
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The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian
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Most of the earth's oxygen occurs in the form of minerals in the crust and mantle. the oxygen that i...
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