Which of the following lines of evidence for continental drift/plate tectonics was found after Wegener published his theory?

the existence of mid-ocean ridges, where seafloor spreading starts

Answer:The line that followed was the expansion of the ocean floor.

Explanation:

This was included along with the continental deribva in the theory of plate tectonics.

Answer: The evidence that was found for continental drift/plate tectonics after Wegener published his theory is the existence of mid-ocean ridges, where seafloor spreading starts

Explanation:

Hess envisaged that oceans grew from their centres, with molten material called basalt gushing up from the Earth's mantle just along the mid ocean ridges. Hess explained that this event created new seafloor which then spread away from the ridge in both directions.

This evidence was found by Hess after Wegener published his theory on continental drifts/plate tectonics.