Question

which two pieces of fossil evidence support the idea of continental drift?
bacteria and petrified wood
glossopteris and bacteria
lystrosaurus and glossopteris
petrified wood and tyrannosaurus

Explanation:

• Lystrosaurus: It was a land - dwelling reptile. Fossils of Lystrosaurus have been found on different continents (such as Antarctica, India, and South Africa). Since Lystrosaurus could not swim across vast oceans, the presence of its fossils on these separated continents supports the idea that the continents were once joined.
• Glossopteris: It was a seed fern plant. Fossils of Glossopteris have been discovered on multiple continents (South America, Africa, Australia, India, and Antarctica). The distribution of this plant fossil across these continents, which are now widely separated by oceans, implies that the continents were once in close proximity (as the plant could not have dispersed across the oceans in its current form).
• Bacteria: Bacteria have a very wide - ranging and often global distribution due to their small size and ability to be easily transported (e.g., by air currents). Their distribution does not specifically support continental drift in the same way as larger, less mobile organisms or plants.
• Petrified wood: While petrified wood can be found in various locations, its distribution is not as strongly tied to the concept of continental drift as the fossils of Lystrosaurus and Glossopteris. Also, petrified wood can be formed in different geological settings independently.
• Tyrannosaurus: Tyrannosaurus fossils are mainly found in North America. Their distribution does not provide evidence for the joining of multiple continents as part of the continental drift theory.

Answer:

C. Lystrosaurus and Glossopteris