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                       26     “That’s nothing,” the volcanologists said. They pointed out how underlying
                           the jungle all around the mountain were signs of massive ancient pyroclastic
                           flows . “That’s all ash from the last eruption.” The helicopter turned, and the
                               6
                           widespread devastation once wrought by this volcano became impossible to
                           miss. The general stared silently out the window as the helicopter headed back
                           to the base.

                       27     Finally, he turned to his second in command. “Do it tomorrow,” he said.

                             6 pyroclastic flows: fast-moving flows of hot gas and rock


                             widespread  If something is widespread, it happens
                             over a large area or among many people.





                            “ Volcanoes don’t necessarily move


                              from deep sleep to violent eruption


                              in a straight, orderly progression.”






                           Mount Pinatubo steams behind an air force helicopter.




























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