{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Geo101 Exam III Review

Geo101 Exam III Review - Phanerozoic Eras 13 What is the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
The “Unofficial” Geo101 Exam III Review (Fall Semester, 2009) Exam is on Lectures 18 through 22 as posted on Sakai (note Lecture 22 is this Tuesday!) 1. Why does Earth have seasons? 2. What are the three Milankovich cycles? 3. What are their periodicities? 4. How /why do they affect Earth’s climate? What is insolation? 5. How does the Earths’ core affect Earth’s atmosphere? 6. What is ozone?, How does that affects earth’s atmosphere? 7. What and how are oxygen isotopes used to infer past climate / temperature change? 8. How did Earth’s atmosphere evolve over its first few billion years? 9. What are methanogens (archaebacteria)? What are cyanobacteria …also known as blue- green algae? 10. What’s the major difference between methanogens and cyanobacteria? 11. What are and what do BIFs tell us? 12. What are the major subdivisions of the Geologic Time Scale. What are the ages of the
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Phanerozoic Eras? 13. What is the Wilson or tectonic cycle? What do mean by continental growth by plate tectonic accretion? What are supercontinents? 14. What are the 3 major limbs of the Tree of Life…which branch do we belong to? 15. What affects Earth’s climate (both long term and short term effects)? 16. What are Greenhouse gases? What do we mean by Global Warming? 17. How has CO2 varied throughout Earth’s history? 18. How is CO2 taken out of the atmosphere? How is it returned to the atmosphere? 19. How do today’s levels compare with the early Paleozoic? The early Cenozoic? 20. Why is Earth’s atmospheric circulation separated into three distinct cells in each hemisphere? What is the Jet stream? Where is it and why does its position change through out the year? 21. What are Monsoons? La Nina, El Nino? 22. Review major events in Earth History …summary slides...
View Full Document

{[ snackBarMessage ]}