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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Everyone has one nostril that is larger than the other.
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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.