Discuss the process and timing of the buildup of oxygen (O2)

Question # 00645092
Subject: Geology
Due on: 03/07/2023
Posted On: 03/07/2023 01:33 AM
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#3 Discuss the process and timing of the buildup of oxygen (O2) in the Earth’s atmosphere. Why is O2 an unusual gas to find in a planet’s atmosphere?

#5 How did the first continental crust form? Discuss in detail. 

#10 Discuss the evolution of tetrapods. Define what a tetrapod is and then outline the timing and appearance of amphibians, reptiles, mammals, dinosaurs, and birds, listing one major anatomical feature that distinguishes each group.

#12 Discuss the mass extinction event that occurred at the end of the Cretaceous period. What went extinct? What are some of the possible causes of the mass extinction? What is the evidence for a large impact at this time?

#13 Discuss the “Snowball Earth” hypothesis. When was this and what was the Earth like during this time?

Other Questions (handwrite your answers) 

  • What happened at the beginning of the Paleozoic? What happened to end the Paleozoic? Use Section 22.7 of your textbook for help.
  • When did the first plants appear on land? What do you think the continents were like before there were plants growing on them? Use Section 22.7 of your textbook for help and your imagination.
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Discuss the process and timing of the buildup of oxygen (O2)

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