21.   It has the potential to trigger malfunctions in the equipment used to generate power, control air traffic, deliver water, track billing and much more.

22.   Natural gas fell as the forecasts for cooler weather signaled reduced demand for the fuel, used to generate electricity for air conditioners.

23.   Natural gas fell after forecasts for cooler weather next week signaled reduced demand for the fuel, used to generate electricity for air conditioning.

24.   Nonessential systems aboard Mir were shut off and a backup system was being used to generate oxygen.

25.   Nor are police sure where Green obtained the chemicals used to generate the gas.

26.   On the moon, the fuels could be used to generate electrical power and air needed to sustain permanent lunar residents.

27.   Power costs would have risen anyway, they say, because the price of natural gas, which is used to generate electricity, has soared.

28.   Schmid said Web sites primarily are used to generate customer leads for catalogs.

29.   Shares of utility companies fell on concern the rising dollar will drive up the price of the imported oil they use to generate power.

30.   Shoppers also rate BizRate stores, and their reports are used to generate site ratings that are prominently displayed next to the name of each store.