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Author Question: John correctly guessed that the purpose of an experiment he was participating in was to examine the ... (Read 39 times) |
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The longest a person has survived after a heart transplant is 24 years.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.