Why did early scientists believe that the continents were able to move on geologic plates?

a
Scientists found pre-historic records that indicated that the plates were moving with data gathered by ancient sages
b
Seismic monitoring shows massive vibrations, indicating they are large sheets of rock that are moving
c
Cartographers mapped the continents and they found that the continents looked like they could fit together like a puzzle
d
Scientists determined that the magma that comes out of volcanoes can only appear is the plates move away from the magma chambers, allowing it to flow up

1 answer

The correct answer is:

c Cartographers mapped the continents and they found that the continents looked like they could fit together like a puzzle.

This observation was one of the key pieces of evidence that led to the development of the theory of continental drift, which later contributed to our understanding of plate tectonics. Scientists noted how the coastlines of continents, such as South America and Africa, appeared to fit together, suggesting they were once joined.