Radioactive minerals found in sedimentary rocks are the outcome of the weathering of igneous rocks. Dating the sedimentary rock would only reveal the time in which the magma cooled to form the igneous rock, not the sedimentary.
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The puppy no longer greetng Molly when she enters the house is an example of extinction. This is because the puppy lacks motivation to greet her when she enters the house because she does not have treats.
D. u.s. workers will lose their jobs