The theory of continental drift has some tough challenges. Here are a few:

1. Not Enough Evidence:

   • Scientists have found similar fossils on different continents. But this isn’t strong proof. Many animals and plants could have moved, or they might have changed on their own in separate places.

2. Rock Layers Don’t Always Match:

   • The layers of rocks and how old they are don't always fit together perfectly. This makes it hard to see clear connections between continents.

3. How Do They Move?:

   • When this idea first came out, there wasn't a solid explanation for how continents could actually move. This made some people doubt the theory.

Possible Answers:

• New research about plate tectonics and how the ocean floor spreads has helped us understand how continents shift over time.
• Ongoing studies in rocks and ancient life can give us better insights into how these movements happen.