At the Cretaceous-Paleogene boundary, a(n)_____ has been found.
A)guide fossil
B)missing link
C)gold anomaly
D)platinum anomaly
E)iridium anomaly

Question

Quizplus · Accepted Answer

At the Cretaceous-Paleogene boundary, an iridium anomaly has been found. This is significant because iridium is not commonly found on Earth's surface but is abundant in asteroids and meteorites, suggesting a possible extraterrestrial impact that contributed to the extinction of the dinosaurs.

At the Cretaceous-Paleogene Boundary, A(n)_____ Has Been Found