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Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Everyone has one nostril that is larger than the other.
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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.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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There are more nerve cells in one human brain than there are stars in the Milky Way.