71.   They have made large tracts of land unusable in countries like Afghanistan, Angola and Cambodia.

72.   This autumn, a confrontation is starting in Congress that could lead to large tracts of federally managed land being handed over to the host states.

73.   They bought the water company and large tracts of land in Hobe Sound, and created the Hobe Sound Co. to manage it all.

74.   This is particularly true in the East and the North, where there are relatively few large tracts of public land.

75.   To promote conservation and prevent development, various groups have purchased large tracts of land.

76.   While New York City has many poor students, it also has large tracts of middle-class families in parts of Queens and Manhattan.

77.   Yet it is easy to wish there were some countervailing forces at work, especially now after large tracts of Boston have been stripped of their local institutions.

78.   Pesticides have proven successful against the fire ant, but they must be used repeatedly and are not practical or cost-effective over large tracts of land.

79.   Over the years, large tracts were bought by unsuspecting ranchers and passed on from one generation to another.

80.   A new land law will allow the government to expropriate large tracts of idle private farmland, President Hugo Chavez said Tuesday.