|
Author Question: Why does irrigated farmland get more and more salty over time? A) Salts and minerals are ... (Read 26 times) |
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The average office desk has 400 times more bacteria on it than a toilet.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.