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Author Question: A girl pushes a cart to the left with a 100-N force. At the same time a boy pushes it to the right ... (Read 131 times) |
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.