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Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.