The fit of coastlines of which of the following continents led people suggested that the continents had drifted over time?

19th century observers had noticed that the coastlines of North America and South America generally matched the coastlines of Europe and Africa. B. A German climatologist named Alfred Wegener proposed scientific evidence to support the idea that the continents once fit together.

Explanation:

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.