Answer the following questions in reference to the four geologic periods listed below.
-Asteroid impact at the K-T boundary caused extinctions.
A)Cretaceous
B)Anthropocene
C)Devonian
D)Permian

Question

Quizplus · Accepted Answer

The asteroid impact at the K-T boundary (65.5 million years ago) occurred during the Cretaceous period and caused the extinction of the non-avian dinosaurs and many other species.

Answer: B
 The Anthropocene is not a geologic period recognized by the International Commission on Stratigraphy, but rather a proposed epoch marking the beginning of significant human impact on the Earth's geology and ecosystems. It is not associated with an asteroid impact or mass extinction.

Answer: C
 The Devonian period (416-359 million years ago) is known for the diversification of early plants and animals, but does not have a known major asteroid impact or mass extinction event.

Answer: D
 The Permian period (299-251 million years ago) ended with the largest mass extinction event in Earth's history, in which over 90% of marine species and 70% of land species went extinct. This was not caused by an asteroid impact, but is thought to be the result of a combination of various factors such as volcanic activity, climate change, and oceanic anoxia.

Answer the Following Questions in Reference to the Four Geologic