Some early mapmakers thought that the coastline of South America matched the coastline of Asia.

Scientists at the time rejected Wegener’s hypothesis of continental drift because he could not explain how or why Earth’s continents move. 

A lack of explanation for continental drift prevented many scientists from accepting that a single supercontinent called ____ once existed.

Alfred Wegener thought which 2 continents looked like puzzle pieces that could fit together?

Alfred Wegener thought South America and Africa had similar coastlines because:

What cold environment feature was evidence to support the theory that the continents used to be joined?

Matching ____ on different continents are evidence for continental drift.

Wegener believed that the continents were assembled as part of a supercontinent about ____ years ago.

Which of the following shows proof that Africa and South America were once connected?

Which of the following pieces of evidence prompted researchers to abandon the hypothesis that a supernova caused high levels of iridium in the K-T layer?