Answer :
Final answer:
Glaciers leave marks on rocks, which can help determine past locations of continents.
Explanation:
Glaciers are large, slow-moving masses of ice that can leave scratches on rocks as they move over them. The presence of rocks in Africa with glacial scratches indicates that at some point, parts of Africa were located farther away from the equator, where glaciers could have existed.
Glaciers can transport rocks over long distances and leave distinct markings, even if they are currently not located near the equator. This evidence suggests past geological movements and the presence of glaciers in regions that are not their typical modern-day locations.
Wegener's theory of continental drift aligns with the idea that the continents have shifted positions over time, explaining how rocks with glacial scratches ended up in regions such as Africa, far from their original locations near the poles.
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