what do scientists believe was the cause of the cretaceous extinction event that killed off all the…

what do scientists believe was the cause of the cretaceous extinction event that killed off all the dinosaurs? a a tsunami b the earth froze c asteroid impact d volcanic eruption

what do scientists believe was the cause of the cretaceous extinction event that killed off all the dinosaurs? a a tsunami b the earth froze c asteroid impact d volcanic eruption

Answer

Brief Explanations:

The leading scientific theory for the Cretaceous - Paleogene extinction event that wiped out the dinosaurs is an asteroid impact. The Chicxulub asteroid impact around 66 million years ago caused massive environmental changes such as dust blocking sunlight, disrupting the food - chain, and leading to climate change. Tsunamis could be a secondary effect of the asteroid impact, the Earth freezing is not the main cause, and while volcanic eruptions were occurring at the time, the asteroid impact is the most widely - accepted cause.

Answer:

C. asteroid impact