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Author Question: In 1990 the world reserves of aluminum ore stood at 75,000,000,000 tons. World use of aluminum that ... (Read 710 times) |
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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The human body produces and destroys 15 million blood cells every second.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.