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Author Question: Kareem is working on a practical problem with his 16-year-old son, Josh, and his 8-year-old ... (Read 2183 times) |
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.