11.   ONI Systems, by contrast, makes specialized optical communications equipment for use in cities and densely populated suburban regions.

12.   Since it takes so many antennas to cover an area, PHS will probably not be economical outside of densely populated regions.

13.   Some folks in this sparsely populated region fear the reintroduction of condors could mean restrictions on ranching, logging, mining and other development.

14.   The atmospheric observatory circling the Earth aboard the shuttle Atlantis has produced findings that raise new questions about ozone damage over populated regions, NASA scientists said Thursday.

15.   The bills include additional measures to protect heavily populated regions and areas especially sensitive to environmental damage.

16.   The listings could require changes to development along rivers in the densely populated central Puget Sound region.

17.   The numbers are climbing fast everywhere except in sparsely populated regions, where HMOs are less practical.

18.   The only reason these quakes were noticed is because they hit populated regions, she said.

19.   The pilots went to great pains to play down the danger inherent in a job that requires long flights into sparsely populated regions controlled by rebels.

20.   The rebels abandoned the five towns in the demilitarized zone, melting into the thick jungles of a sparsely populated region known as El Caguan.