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Earth Science 101 Final Exam Correct Answers Latest Version
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Earth Science 101 Final Exam CorrectAnswers Latest Version
The geological time scale is broken into a series of eras, epochs, and periods based mainly on the fossils
found in each section. This is an example of which type of dating?
A. Radiometric
B. Numerical
C. Relative Age
D. Isotopic Answer: Relative Age
A Basaltic lava flow contains fragments of sedimentary rocks which of the following is true?
a. Lava is younger than sedimentary rock
b. Sedimentary rock is younger than the lava
c. The lava flow is viscous
d. The rock is the same age as the lava Answer: Lava is younger than sedimentary rock
In an undisturbed sequence of sedimentary rocks, younger layers overlie older layers according to the
principle of?
A. Superposition
B. Original horizontality
C. Original continuity
D. Uniformitarianism Answer: Superposition
Uniformitarianism is succinctly summarized by which phrase?
a. The past is the key to the present.
,b. The present is the key to the future.
c. The present is the key to the past.
d. The future is the key to the present Answer: The present is the key to the past.
If a sandstone lies on top of a shale
a. The shale must be younger according to the principle of superposition
b. Their ages can't be determined
c. The shale must be older according to the principle of components
d. The shale must be older according to the principle of superposition Answer: The shale must be
older according to the principle of superposition
Unconformities represent______ in a rock record
a. Fossils
b. Erosion or non-deposition
c. Slump
d. Creep Answer: Erosion or non-deposition
A layer of shale that contains a distinctive fossil could be used as a______
a. Marker Bed
b. Geologic contact
c. Stratigraphic sequence
d. Depositional contact Answer: Marker Bed
The _____ represents the global strata from the entire earth's history
a. Stratigraphic strata
, b. Lithologic sequence
c. Stratigraphic column
d. Geologic column Answer: Geologic column
The Earth is approximately how old?
a. 4.54 ga
b. 4.45 ga
c. 4.54 ma
d. 4.45 ma Answer: 4.54 ga
Which of the following provide evidence of past life and helps us understand life and environments?
a. Plate tectonics
b. Erosion
c. Fossils
d. Lapetus Answer: Fossils
Chalk rock contains many tiny plankton shells this is the evidence of which type of environment
a. Ocean
b. River
c. Forest
d. Desert Answer: Ocean
Which of the following is not true of earths glacial history?
a. The earths climates cooled enough in the past for large ice sheets to cover the continents
b. A glacial maximum at the end of the Proterozoic resulted in the great oxygenation event
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