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Research information on the positions of:
1) mountain ranges,
2) areas of volcanic activity, and
3) zones of earthquake activity.
Then plot them on a globe or map of the western hemisphere.
You will discover that nearly all such features are concentrated along the Pacific coastline. How might this information provide support for the theory that both North America and South America are drifting westward?
Now gently and slowly push a small rug across the floor from the trailing end. (The rug will develop folds along the leading edge.) In a similar way the upper rock layers along the western edge of the continents of North and South America buckle and deform into mountain ranges as drifting continues. What mountain ranges in North America and South America could have been built by continental drift?
Do some research on plate tectonics to find out about continental drift.
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