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Biology, 20.07.2019 01:10 cristykianpour
Will give abrainlest pu-239 has a half-life of 240 years 24 years 24,000 years 2,400 years
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Will give abrainlest pu-239 has a half-life of 240 years 24 years 24,000 years 2,400 years...
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