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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?
Answers: 1
Biology, 22.06.2019 12:10
26 a medida que cambia el clima, ¿qué tipo de reproducción más probablemente de a una especie mayores posibilidades de supervivencia?
Answers: 2
12000 m = ___ km
0.33 L = cl...
0.33 L = cl...
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