Which of these extinctions killed off the dinosaurs? Cretaceous-Tertiary, End Triassic,Permian-Triassic,Late Devonian, or Ordovician-Silurian?

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Asked 3/25/2009 1:24:33 PM

Updated 7/23/2023 12:09:52 AM

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User: Which of these extinctions killed off the dinosaurs? Cretaceous-Tertiary, End Triassic,Permian-Triassic,Late Devonian, or Ordovician-Silurian?

Weegy: Ordovician-Silurian

User: Which of these extinctions had the worst mass extinction in Earth's history? Cretaceous-Tertiary, End Triassic,Permian-Triassic, or Late Devonian?

Weegy: Late Devonian
Expert answered|There is Hope|Points 83|

User: Which of these extinctions possibly caused by forest grow on Earth's land surface? Cretaceous-Tertiary, End Triassic, or Permian-Triassic?

Weegy: Cretaceous-Tertiary
Expert answered|There is Hope|Points 83|

User: Which of these extinctions the earliest mass extinction on record? End Triassic, or Permian-Triassic?

Weegy: Permian-Triasic
Expert answered|There is Hope|Points 83|

User: What are the possible causes of the Late Devonian extinction?

Weegy: Do you have the multiple choices? or only blank answer?
Expert answered|There is Hope|Points 83|

User: It may be more than one! asteroid hitting the earth, sea level changes, overpopulation of sea organisms, growth of land forests, or climate changes?

Weegy: Two prominent theories of extinction are climate change and an asteroid hitting the Earth.
Expert answered|There is Hope|Points 83|

User: The mass extinction that was most likely caused by the formation and retreat of glaciers was the _____ extinction. Cretaceous-Tertiary, End Triassic, Permian-Triassic, Late Devonian, or Ordovician-Silurian?

Weegy: Ordovician-Silurian
Expert answered|There is Hope|Points 83|

User: Before the Ordovician-Silurian extinction, the diversity of life on Earth was growing enormously due to _____. shallow, warm, continental seas, overpopulation of land forests, cold, glaciated oceans, unknown reasons, or comets hitting the earth?

Weegy: Over population of land forrest
Expert answered|There is Hope|Points 83|

Question

Asked 3/25/2009 1:24:33 PM

Updated 7/23/2023 12:09:52 AM

6 Answers/Comments

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Jerrald@22

Cretaceous-Tertiary extinctions killed off the dinosaurs.
Explanation:
Scientists refer to the major extinction that wiped out non-avian dinosaurs as the K-T extinction, because it happened at the end of the Cretaceous period and the beginning of the Tertiary period.

Added 7/23/2023 12:09:31 AM

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Jerrald@22

Permian-Triassic extinctions had the worst mass extinction in Earth's history.

Added 7/23/2023 12:09:34 AM

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Jerrald@22

Late Devonian extinctions possibly caused by forest grow on Earth's land surface.

Added 7/23/2023 12:09:39 AM

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Jerrald@22

Asteroids hitting the earth, the growth of forests, climatic changes, and sea level changes. - are the possible causes of the Late Devonian extinction.

Added 7/23/2023 12:09:42 AM

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Jerrald@22

The mass extinction that was most likely caused by the formation and retreat of glaciers was the Ordovician-Silurian extinction.

Added 7/23/2023 12:09:47 AM

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Jerrald@22

Before the Ordovician-Silurian extinction, the diversity of life on Earth was growing enormously due to: shallow, warm and continental seas.

Added 7/23/2023 12:09:52 AM

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