GEOL1122 Fall 2009
1) b 10) a 19) b
2) a 11) d 20) c
3) a 12) b 21) b
4) c 13) c
5) b 14) d
6) b 15) c
7) b 16) a
8) a 17) b
9) d 18) b
22) All observed and predicted matter and space
23-24) Composition: mostly hydrogen and helium; Age: 13-20 Billion Years
25) Andromeda
26) Distance that light will travel in one year
27) Archean: 4.6 to 2.5 Billion Years Ago: Proterozoic: 2.5 Billion to 545 Million Years Aga
28) Banded Iron Formations or Hematite-rich Sedimentary Rocks
29-30) Thick sequences of low-grade (greenschist) metamorphosed volcanic rocks (often with pillow structures) and immature (rapidly deposited) sedimentary rocks. They indicate that there were widespread volcanic island-arc protocontinents at this time without large continental landmasses.
31-33) a) We are increasing the amount of greenhouse gases in the atmosphere by burning fossil fuels and destroying rainforests. This is resulting in global warming.
b) We are releasing CFCs that are destroying the ozone layer that protects the Earth from harmful UV radiation.
34-35) Chemosynthesizers are organisms that use chemical compounds as energy for metabolism and cell reproduction. They are important because they probably are the oldest organism on Earth.
36) Because eucaryotes sexually reproduce allowing for genetic recombination and mutations that does not take place in older prokaryotes.
37) Andes
38-39) Siberia, China, Gondwana, Baltica, and Laurentia
40) Pangea
41-42) They are a complex and diverse collection of marine, soft-bodied fossilized organisms that indicate life was more evolved in the late Proerozoic than expected.
43) Acadian
44-45) global warming and melting of ice caps and increased rates of seafloor spreading
PART III - Geologic Time Scale (10 pts. - 1 point each blank)
Fill in the correct Era or Period name for each blank.
|
ERA |
PERIOD |
EPOCH |
|
__CENOZOIC_____________ |
Quaternary Neogene Paleogene |
Holocene Pleistocene Pliocene Miocene Oligocene Eocene Paleocene |
|
MESOZOIC_____________
|
____Cretaceous_____
Jurassic Triassic |
|
|
PALEOZOIC___________ |
____Permian________ __Pennsylvanian______
__Mississippian_______ ___Devonian_________ ___Silurian__________ __Ordovician_________
___Cambrian__________ |
|
|
Proterozoic Precambrian_ Archean_____ |
|
|
Extra Credit (2pts): What is the name of the continental landmass that formed as a result of
the Acadian Orogeny? __Laurasia or the Old Red Sandstone Continent_______