1.   My presence usually causes some excitement.

2.   Observations have been made of one turbulent spot appearing in the boundary layer a little way downstream of an older one, whose presence has caused sufficient disturbance.

3.   His presence here has caused tensions between the two neighbors.

4.   In addition to the deer that the wolves killed, he said, their presence caused deer to leave their usual spots.

5.   In the third game, her presence caused USC to avoid her, resulting in errors, and a five-point lead became three.

6.   Its mission is to dislodge a mile-long ice jam whose mass threatens a five-span steel bridge and whose presence could cause floods upstream.

7.   Its presence caused no small dilemma over the long holiday weekend.

8.   She believes that her mere presence causes electronic devices to malfunction.

9.   The expanding Jewish presence has caused friction with Arab neighbors, and several settlers have been killed in the Old City in recent years.

10.   Now some volunteers wonder whether their presence has actually caused problems by discouraging quake victims from doing more to help themselves.