Suppose earth landmasses someday all move together. Describe the changes that will occur in earths oceans in earths land masses. Use the map and the theory of plate tectonics to explain your ideas.

The oceans will get wider as the continents are brought together to each other as a result of subduction zones. Most continents and microcontinents will collide with Eurasia. Eurasia could then collide with North America, when Eurasia shifts to the east and North America to the west. Australia could join Southeast Asia. As a result, Pacific ocean will grow wider and merge with all the other oceans, whereas all the earth's landmasses are combined, as a result of subduction.