71.  Officials mention several possible reasons for the difficulties now.

72.  Now researchers are suggesting a possible reason..

73.  Oddone speculated about two possible reasons for the disparity.

74.  Officials here say they lack the sophisticated equipment to analyze the reasons for the higher sea level, but they offer some possible reasons.

75.  One possible reason for confusion is that consumers rely on friends, relatives and the news media for nutrition advice.

76.  One possible reason for NBC to tweak ABC about the looming presence of its new corporate parent is to distract it while NBC keeps up the programming pressure.

77.  One possible reason for the German action now is concern that the suspects might flee.

78.  One possible reason is that cash seems to have flowed in faster than it could be invested.

79.  One possible reason for the lack of detail is that many of the hints have nothing to do with the home.

80.  One possible reason is that nature has adjusted birth rates to compensate for the fact that being a male is more hazardous in virtually all societies.