The isotope 19K40 with a half life of 1.37 x 10^9 years decays into 18Ar40 which is stable Moon rock from the Sea of Tranquility. Show that the ratio of these Potassium atoms to Argon atoms is 1/7. Estimate the age of the rocks.
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Area 51 is a secret American military base where they form there secret military aircrafts and they also make story of aliens so that they can make their aircraft without telling Russian their enemy and the whole world. And yes all the stories of aliens and area 51 are fake.
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