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Subject: Radiometric dating gen. Пожалуйста, переведите на русский эти три предложения.Спасибо! The rate of decay and half lives have remained constant over time The clock was set to zero when the material formed We are dealing with a closed system |
| это к аглицким соседям :) |
| ой, я опять спутала. Извините. |
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