11.   Seragen Inc. caused waves in the academic and business worlds for its close relationship with Boston University.

12.   That decision caused a wave of resentment among rural lawmakers, who believed they had been deceived.

13.   That civil war, in turn, caused a wave of immigration that was as massive as it was unprecedented from that country to this.

14.   The former senator recently caused a wave of controversy when he expressed skepticism about the addictiveness of cigarettes.

15.   The measures have already caused a wave of indignation throughout Mexico.

16.   The number of new people booking dipped enough to cause waves in the industry.

17.   The pressure on parts suppliers has caused a wave of consolidations and liquidations that is expected to continue.

18.   The soil bacterium Aspergillus causes waves of mass mortality among gorgonian corals, or sea fans.

19.   The Texas-based company caused a wave of fear when it began selling old playbooks from college and pro football teams.

20.   The trade slump has caused a wave of layoffs in Silicon Valley and elsewhere.