Сопоставьте: to monitor people from the flooded village to evacuate the warning on the radio and to warn the destruction caused by the flood to broadcast the water level to rescue the survivors people about the danger to limit of the volcano eruption

To broadcast the warning on the radio and to warn people about the danger; to evacuate people from the flooded village; to monitor the destruction caused by the flood; to limit the water level; to rescue the survivors of the volcano eruption.