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Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Did you know?
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.