Week 8 Final Exam (timed and single access)
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Part 1 of 4 - 48.0/ 52.0 Points
Question 1 of 50
2.0/ 2.0 Points
A coarse-grained (phaneritic texture) igneous rock formed _________________.
A. due to erosion, frost wedging, and weathering
B. on the surface of the earth in an explosive eruption
C. on the surface of the earth in a quiet (effusive) eruption
D. by immense direct pressure and heat
E. deep under the surface of the earth
Question 2 of 50
2.0/ 2.0 Points
The Precambrian Era is the time before abundant multicellular life with hard parts evolved. This time
interval represents what percentage of earth’s history?
A. 1%
B. 99%
,
C. 88%
D. 50%
E. 12%
Question 3 of 50
2.0/ 2.0 Points
What evidence did Alfred Wegener use for his hypothesis of continental drift?
A. trenches and subduction zones
B. similar rocks and fossils on distant continents
C. mid-oceanic ridges and the age marine rocks
D. paleomagnetic patterns on either side of the mid-oceanic ridge
E. earthquake patterns and GPS measurements
Question 4 of 50
2.0/ 2.0 Points
Scientific conclusions are based on _____________.
,
A. public consensus
B. subjective evidence and ancient books
C. polling of experts
D. only quantitative data
E. objective evidence and experiments
Feedback:01.2
Question 5 of 50
2.0/ 2.0 Points
In terms of groundwater resources, what properties make the best aquifer?
A. Low porosity and low permeability
B. Low porosity and high permeability
C. High porosity and high permeability
D. High porosity and low permeability
,
E. High porosity and no permeability
Question 6 of 50
2.0/ 2.0 Points
Folds like anticlines and synclines are most associated with _______.
A. Tectonic shear
B. Erosion
C. Tectonic compression
D. Volcanism
E. Tectonic extension
Question 7 of 50
2.0/ 2.0 Points
When the radiometric clock starts ticking in zircon minerals, there is only 100% of the unstable radiometric
parent isotope X and 0% of the stable daughter isotope Y. After testing in a lab millions of years later, there
is 25% of the parent radiometric isotope and 75% of the daughter isotope. How many half lives have
elapsed?
A. 3
Return to Assessment List
Part 1 of 4 - 48.0/ 52.0 Points
Question 1 of 50
2.0/ 2.0 Points
A coarse-grained (phaneritic texture) igneous rock formed _________________.
A. due to erosion, frost wedging, and weathering
B. on the surface of the earth in an explosive eruption
C. on the surface of the earth in a quiet (effusive) eruption
D. by immense direct pressure and heat
E. deep under the surface of the earth
Question 2 of 50
2.0/ 2.0 Points
The Precambrian Era is the time before abundant multicellular life with hard parts evolved. This time
interval represents what percentage of earth’s history?
A. 1%
B. 99%
,
C. 88%
D. 50%
E. 12%
Question 3 of 50
2.0/ 2.0 Points
What evidence did Alfred Wegener use for his hypothesis of continental drift?
A. trenches and subduction zones
B. similar rocks and fossils on distant continents
C. mid-oceanic ridges and the age marine rocks
D. paleomagnetic patterns on either side of the mid-oceanic ridge
E. earthquake patterns and GPS measurements
Question 4 of 50
2.0/ 2.0 Points
Scientific conclusions are based on _____________.
,
A. public consensus
B. subjective evidence and ancient books
C. polling of experts
D. only quantitative data
E. objective evidence and experiments
Feedback:01.2
Question 5 of 50
2.0/ 2.0 Points
In terms of groundwater resources, what properties make the best aquifer?
A. Low porosity and low permeability
B. Low porosity and high permeability
C. High porosity and high permeability
D. High porosity and low permeability
,
E. High porosity and no permeability
Question 6 of 50
2.0/ 2.0 Points
Folds like anticlines and synclines are most associated with _______.
A. Tectonic shear
B. Erosion
C. Tectonic compression
D. Volcanism
E. Tectonic extension
Question 7 of 50
2.0/ 2.0 Points
When the radiometric clock starts ticking in zircon minerals, there is only 100% of the unstable radiometric
parent isotope X and 0% of the stable daughter isotope Y. After testing in a lab millions of years later, there
is 25% of the parent radiometric isotope and 75% of the daughter isotope. How many half lives have
elapsed?
A. 3
