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Author Question: What environmental challenges are associated with extracting coal? What will be an ideal ... (Read 27 times) |
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Medication errors are more common among seriously ill patients than with those with minor conditions.