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Author Question: Around the 1880s, mechanical ____________________ was developed that enabled storage rooms to be ... (Read 15 times) |
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.