Fill in the blank. The words in parentheses represent the choices after the blank. Because the environmental changes that occurred after the strike were likely __________ (severe,mild), the Alvarez scientists argued that the asteroid strike may have caused the Cretaceous–Paleogene mass extinction. Although some scientists remain skeptical, a giant crater off of Mexico’s Yucatan Peninsula (the Chicxulub crater) supports their hypothesis.
Fill in the blank. The words in parentheses represent the choices after the blank.
Because the environmental changes that occurred after the strike were likely __________ (severe,mild), the Alvarez scientists argued that the asteroid strike may have caused the Cretaceous–Paleogene mass extinction. Although some scientists remain skeptical, a giant crater off of Mexico’s Yucatan Peninsula (the Chicxulub crater) supports their hypothesis.
The research done by the scientists of Alvarez's scientists demonstrated that the creatures living on the Earth-like dinosaurs that can't fly and were herbivores died by the Cretaceous-Paleogene mass extinction event.It added iridium to the surficial layer that was present during the time of fall of the asteroid. Proof demonstrates that the space rock fell in the Yucatán Peninsula at Chicxulub, Mexico making a giant crater there.
The severe changes in environmental conditions occurred after this impact. The sunlight became unable to reach the Earth's surface due to the enormous cloud of dust and gases formed by the impact, and the terrestrial plants died. There remained no food for the dinosaurs that were herbivores, so they died.
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