What is a deep ocean trench? * A. An area in the ocean that has an upwelling of molten material associated with seafloor spreading
B. A deep canyon formed in the ocean at a subduction zone
C. The process by which ocean crust spreads apart along each side of a mid-ocean ridge

because mexico wanted to choose a centralized location

increase in population

who was the head of the bureau who was the head of the bureau

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.