Fossils of tropical plants and animals can be found buried in limestone rock in the North Texas area. These plants and animals are no longer found in this region. What is the most likely cause of the disappearance of these tropical plants and animals?

Earthquakes and volcanoes destroyed all the tropical plants and animals.

Tropical animals ate all the tropical plants and everything died out.

Air pollution and acid rain killed off all the tropical plants and animals.

The climate in that area is different today than when tropical plants and animals lived there.