Which piece of evidence did Alfred Wegener's original theory of continental drift have access to? seafloor spreading at mid-ocean ridges

reversing paleomagnetism in rocks on the ocean floor

a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains

evidence of ancient tropical swamps in cold regions of North America

answer asap and there was no science so i had to pick wut was closest

seafloor spreading at mid-ocean ridges

Explanation:

The Earth's plates moved over millions of years, bringing continents and other features of the Earth to their present arrangement.

not clear

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.