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Biology, 19.10.2019 00:30 OperatorBravo
What type of resources such as fossil fuels, fresh water, and soils are being used up or degraded by humans?
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Biology, 22.06.2019 11:30
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
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What type of resources such as fossil fuels, fresh water, and soils are being used up or degraded by...
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