Active, dormant and extract are the stages of volcanic activity. Volcano is a natural disasters and when the rocks of the mountain expel out in the form of molten lava, gases and heat due to the development pressure, it can called as volcanic explosion
4 a.m . in the morning San Fran time at the time you depart Boston at 8: am. If for example, this is a 4 hour flight, you will arrive at San Fran at 8:00 a.m
