第55次打卡（1月6日）

Good morning everyone, they are environmental science lectures.I guess you were today hearing about global watming.Well,I......today to talk about ......particular volcano and this fact of global cooling.I'll begin by going back to a little bit time towards the middle of 1991.The second largest ......occured ......not far from the captial of the city ......on the island ......Mountain ......belongs to a chain of volcanos in the area.And this was by no means the first erruption .There were evidence ......erruption ......500,3000 and 5500 years ago.The......1991......began in July 1990 when the magnitude 7......earthquake occurred ......The sleeping ......has real wakened but few people had any idea of what is stored for them in middle March 1991.Many earthquakes experienced ......And this is one volcano scientists or......started......Before the disaster,thousands of people lived in very close......to the mountain .And in April 2nd,......explosion from......dusty with ash,this tesulted in the order ......of 5000 people later that month.