Question

which piece of evidence suggests that africa and south america formed gondwanaland 200 million years ago?
○ coal fields
○ a shared ocean
○ folded mountains
○ land formations created by glaciers

Explanation:

To determine the evidence for Africa and South America forming Gondwanaland, we analyze each option:

• Coal fields: Not unique to Gondwanaland's formation.
• A shared ocean: Doesn't indicate past land connection.
• Folded mountains: Formed by tectonic activity but not specific to Gondwanaland's history.
• Land formations created by glaciers: Glacial deposits (tillites) and glacial landforms in matching patterns across Africa and South America (from when they were part of Gondwanaland) support their past connection. This is a key piece of paleoclimatic and paleogeographic evidence for continental drift and the existence of Gondwanaland.

Answer:

D. land formations created by glaciers