11. Warning that computers in the United States are not secure, the National Academy of Sciences has urged the nation to revamp computer security procedures, institute new emergency response teams, and create a special nongovernment organization to take charge of computer security planning.

12. After gradually declining to about 39 hours in 1970, the workweek in the United States has steadily increased to the point that the average worker now puts in an estimated 164 extra hours of paid labor a year.

13. As Hurricane Hugo approached the Atlantic coast, it increased dramatically in strength, becoming the tenth most intense hurricane to hit the United States mainland in the twentieth century and the most intense since Camille in 1969.

14. The commission has directed advertisers to restrict the use of the word "natural" to foods that do not contain color or flavor additives, chemical preserva¬tives, or anything that has been synthesized.

15. The Iroquois were primarily planters, although they supplemented their cultivation of maize, squash, and beans with fishing and hunting.

16. Unlike the honeybee, the yellow jacket can sting repeatedly without dying and carries a potent venom that can cause intense pain.

17. None of the attempts to specify the causes of crime explains why most of the people exposed to the alleged causes do not commit crimes and, conversely, why so many of those not so exposed do.

18. Computers are becoming faster, more powerful, and more reliable, and so too are modems, the devices that allow two or more computers to share information over regular telephone lines.

19. In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism&aposs attempt to metabolize, or render harmless, the chemical irritant.

20. Using accounts of various ancient writers, scholars have painted a sketchy picture of the activities of an all-female cult that, perhaps as early as the sixth century BC, worshipped a goddess known in Latin as Bona Dea, "the good goddess."

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