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Author Question: If you go to a schoolyard when children are at play, it is quite likely that you will notice that ... (Read 28 times) |
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The average adult has about 21 square feet of skin.
Did you know?
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
In early industrialization, children worked alongside adults. They worked 12 hours a day Monday to ...
Roller lifter from a GM Duramax 6.6 liter V-8 diesel engine. Notice the size of this lifter compared ...