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81. In an fort to reduce their inventories, Italian vintners have cut prices; their wines are priced to sell, and they do.

82. Senator Lasker has proposed legislation requiring employers to retain all older workers indinitely or show just cause for dismissal.

83. Most state constitutions now mandate that the state budget be balanced each year.

84. Under the Safe Drinking Water Act, the Environ?mental Protection Agency is required either to approve individual state plans for controlling the discharge of wastes into underground water or to force its own plan for states without adequate regulations.

85. Dirt roads may evoke the bucolic simplicity of another century, but financially strained townships point out that dirt roads cost twice as much to maintain as paved roads do.

86. Although early soap operas were first aired on evening radio in the 1920&aposs, they were moved to the daytime hours in the 1930&aposs when the evening schedule became crowded with comedians and variety shows.

87. The energy source on Voyager 2 is not a nuclear reactor, in which atoms are actively broken apart, but rather a kind of nuclear battery that uses natural radioactive decay to produce power.

88. The recent surge in the number of airplane flights has clogged the nation&aposs air-traffic control system, leading to a 55 percent increase in delays at airports and prompting fears among some officials that safety is being compromised.

89. Presenters at the seminar, one of whom is blind, will demonstrate adaptive equipment that allows visually impaired people to use computers.

90. The peaks of a mountain range, acting like rocks in a streambed, produce ripples in the air flowing over them; the resulting flow pattern, with crests and troughs that remain stationary although the air that forms them is moving rapidly, is known as "standing waves."