21.   On this day, Verba made an impact just by taking the field in pads and participating on a limited basis.

22.   Other scientists noted that the surface of Europa bears few marks of impacts by asteroids or comets.

23.   Ryding said deflation could have a devastating impact by creating incentives for consumers and business owners to defer spending.

24.   Scientists agreed Thursday that a catastrophic impact by an asteroid or comet at some time in the future is certain, unless measures are taken to head it off.

25.   The bullet-shaped lower section is designed to respond to the force of the impact by plunging from one to three feet into the subsoil.

26.   The exile lobby succeeded in negating much of its impact by banning private US credit for the sales.

27.   The council could further strengthen its impact by broadening its teams, now made up almost entirely of educators.

28.   The movie is a bland, glib melodrama that softens its impact by robbing its protagonist of the resourcefulness and physical courage it must have taken to survive.

29.   The studies envisioned a low-speed impact by a plane lost in fog, he said.

30.   Others say the monetary benefits lose impact by a watered-down competition lacking drama until the later rounds.