Answer:
In a reconstruction of Earth's geologic past the continents of Africa and South America fit best along the continental shelves .
Step-by-step explanation:
Continental Drift -
According to this theory , The continent Earth have moved on geological time that is with respect to each other , therefore , appearing to be drifted across ocean bed .
The Continental drift idea has been subsumed from the theory of the plate tectonics , i.e. , the continents move by riding on plates of the Earth's lithosphere.
This was suggested by Alfred Wegener in his theory of continental drift. He suggested that the coastline of both the continents are perfectly fit. But later proved that continental shelves also well fit.