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Author Question: Preschool children can use a computer to learn simple skills such as spatial directions, but also to ... (Read 133 times) |
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.