21.   America faced up to the cumulative effects of an age of unchecked industrialization.

22.   And the cumulative effect can be deadly.

23.   And the cumulative effect of multiple concussions can be deadly.

24.   Both the Fish and Wildlife Service and the Environmental Protection Agency have strongly complained that the potential cumulative effects of extensive drilling in the area are being ignored.

25.   A new increase and the cumulative effect of the previous rate increases are expected to slow the economy to a pace that would make bonds an attractive investment.

26.   A former president of the alliance, Julie Pell, said there had been a cumulative effect of testimony about discrimination from men and women who were openly gay.

27.   All these changes have had a cumulative effect on the Anchorage psyche, frustrating people who thought they came to Alaska to get away from the madding crowd.

28.   But differences began to appear in the next three months because of the cumulative effect, Weintraub said.

29.   But before the enzymes are replaced, he said, they can absorb repeated doses of nerve agents, allowing small doses to have a cumulative effect.

30.   But from wacky to sincere, the cumulative effect was an on-air crash course in voter attitudes and arcane procedures.