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Author Question: Two people, each of 70 kg mass, are riding in an elevator. One is standing on the floor. The other ... (Read 242 times) |
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.