Question

what is it called when many different species become extinct in a short time. asteroid mass extinction cenozoic climate change question 21 how many mass extinctions have their been? 6 7 5 2

Explanation:

• First question:
• An asteroid is a small rocky body in space.
• The Cenozoic is a geological era.
• Climate change is a long - term change in Earth's climate.
• Mass extinction specifically refers to many species becoming extinct in a short time.
• Second question:
• There have been 5 major mass extinctions in Earth's history (Ordovician - Silurian, Devonian, Permian - Triassic, Triassic - Jurassic, Cretaceous - Paleogene).

Answer:

• First question: B. Mass Extinction
• Second question: C. 5