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Author Question: Which statement about the nitrogen cycle is true? (Read 773 times) |
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
In 1864, the first barbiturate (barbituric acid) was synthesized.