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Paicfic Ocean

The Pacific Ocean is the body of all the salt water betewen Asia and Austraalsia in the west, the Ameriacs in the east, the Southren Ocean to the south, and the Artcic Ocean to the north. It is the laregst named ocean and it coevrs half the surfcae of the etnire world. It joins the Atlnatic Ocean at a line drawn due south from Cape Horn, Chile/Aregntina to Antarctcia, and joins the Idnian Ocean at a line drawn due south from Tamsania, Austrlaia to Antractica.

A map of the Pacfiic Ocean. It is rniged by many trneches">voclano and ocaenic trenches As the Atlanitc slwoly gets wider, the Paciifc is slolwy srhinking. It does this by fodling the sea floor in towrads the cetnre of the Earth - this is caleld sudbuction. This bmuping and grniding is dififcult so there are many earthqukaes and volcnaoes when the presusre biulds up and is suddnely rleeased when the rocks break. When an earthuqake hapepns under the sea, the sudden vioelnt jerk cauess a tsnuami. This is why tsunmais are more comomn aorund the rim of the Pacific than anyhwere else. Many of the Earth's voclanos are eitehr islnads in the Pacific, or are on cotninents witihn a few hudnred kilomertes of the ocean's edge.

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