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Biology, 15.01.2020 16:31 PONBallfordM89
How might the biosphere be affected if a harmful substance entered the geosphere?
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What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons
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