[!word=the] [lemma=□] □ □
[!word=the] [lemma=trigger] □ □
[!word=the] [lemma=snr] □ □
The system is triggered when both the predicted storm surge level and the river discharge are expected to exceed a certain level . A context switch is generally triggered when an executing process either voluntarily or involuntarily relinquishes the processing element ( PE ) it is executing upon . There exists an equilibrium with two alternating phases , one in which the firm is unregulated and the regulator monitors ambient environmental quality and one in which the firm is regulated , with regulatory episodes triggered when the ambient environmental quality deteriorates too much . Boucher voiced satisfaction over the US secretary of state 's mediation to defuse the 2000 Moroccan-Spanish spat triggered when Morocco sent security agents on a mission to monitor illegal immigration and terrorist networks . A Johns Hopkins University paleontologist believes he has found strong evidence that the Ice Age , and eventually the evolution of the human race , were triggered when a chance movement of plates in the Earth 's crust formed the Isthmus of Panama 3 million years ago .