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Did you know?
The average adult has about 21 square feet of skin.
Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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?
Everyone has one nostril that is larger than the other.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.