71.   The changes over the past five years amaze Rathnam.

72.   The ideals about what is and what is not physically attractive change over time.

73.   The mind does not assimilate too much change over too short a period of time without ripples of stress developing.

74.   The new method tracks price changes over time, thus eliminating a major source of the revisions.

75.   The meaning of symbols changes over time, and these buildings are no exception.

76.   The researchers compared the time of ice breakup with weather records from Nenana and Fairbanks and found that the time correlated well with temperature change over the decades.

77.   The Russian drilling program is the most ambitious ever undertaken in Antarctica, collecting ice samples to study climate change over the ages.

78.   The shutdown comes at a critical time for Ford, as the company changes over machinery at the plant to build its new Expedition sport utility vehicle.

79.   The shortfall is due largely to demographic changes over the coming decades when there will be fewer workers to support the growing elderly population.

80.   The Temptations have weathered many personnel changes over the years, as well as the deaths of former members Kendricks, Franklin, Ruffin and Paul Williams.