Word: unclear
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Dates: during 1990-1999
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Exactly what determines the speed with which the earth's plates move is unclear, but scientists have some ideas. "The fault material may play a role," Linde says. "Porous rock containing water can move more smoothly than other rock. The pressure the plates are under can make a difference too; the higher the stress, the likelier the fault will fail suddenly...
Although this aspect of the compromise may not be permanent, College administrators say PBH's programs are complex enough to necessitate significant non-student input. It is unclear, however, whether this part of the compromise--one of its most important aspects--will be reapproved next September...
Although this aspect of the compromise may not be permanent, College administrators say PBH's programs are complex enough to necessitate significant non-student input.It is unclear, however, whether this part of the compromise--one of its most important aspects--will be reapproved next September...
...exact form of the Western reaction to Saddam Hussein is unclear. Said a Washington policymaker candidly on Saturday: "Right now we're trying to figure out what direction we should take." While the range of options includes military action either in northern Iraq or in the whole country, the White House prefers for the present to work on the diplomatic front. Saddam has been lobbying the international community, with some success, to loosen the U.N.'s economic sanctions against Iraq. The U.S. and other Western powers, though, are likely now to press even harder to maintain the sanctions. Being...
...Research finds that for reasons unclear, men with chronic BRONCHITIS may be 50% more likely to suffer a heart attack...