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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.
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.