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Beier's 8 Geologic History Review 2 Flashcards | StudBud
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Beier's 8 Geologic History Review 2
Beier's 8 Geologic History Review 2
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Middle School Earth Science Geologic Time Review #middleschool #earthscience #geologictime
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Answers
1
Which of the following accurately characterizes Precambrian rock?
It has been severly damaged because of Earth processes
It has clearly identified layers
It contains much limestone
It has many fossils
2
The Precambrian rock record is difficult to interpret because
tectonic activity has severely altered the rock layers
Precambrian time rocks contain so many minerals
rocks exist from Precambrian time are all the same
Precambrian time rocks contain so many fossils
3
A method of putting events in the order in which they happened is known as
cross-cutting
lateral continuity
Law of Superposition
relative dating
4
Rock layers on one side of the Grand Canyon match up on the other side, which illustrates
relative dating
original horizontality
lateral continuity
superposition
5
The Earth geological process where rock gets pushed up by crustal plates is called
unconformity
angular unconformity
nonconformity
dysfunctional conformity
6
Relative dating uses various clues to figure out
the behaviors of an organism
a person's family tree
the exact age of an object
the order of events over time
7
Which of the following is most closely associated with radiometric dating?
Annular Rings in Trees
Fossil Remains in Rocks
Half-lives of Elements
Superposition of Rock Layers
8
Some strata become separated because of erosion over time. We can match these rock layers thru
correlation
cross-cutting relations
superposition
original horizontality
9
Which of the following is a method of absolute dating?
Law of Original Horizontality
Dendrochronololgy
Law of Superposition
All of these can be used for absolute dating
10
The Earth geologic process where rock gets folded and tilted is called
dysfunctional conformity
disconformity
nonconformity
angular unconformity
11
Dinosaurs became extinct at the end of the
Jusassic Park movie
Jurassic Period
Cretaceous Period
Triassic Period
12
The division of geologic time that makes up about 88% of Earth's history is called
Precambrian Time
Paleozoic Time
Permian Time
Cambrian Time
13
Older rock pieces that are found inside another rock are known as
cross-cuts
fossil successions
fossils
inclusions
14
Which of these ideas are methods of relative dating?
Principles of cross-cutting relationships
All of these can be used for relative dating
Law of Superposition
Principle of fossil succession
15
Whenever a part of the geologic record is missing or eroded away, we call this
an angular unconformity
an unconformity
a disconformity
a dysfunctional conformity
16
Fossils are most often formed from which parts of a dead organism?
The organism's skin
Hard parts
The entire body
Soft parts
17
The law that states the bottom layer of a rock formation is older than the top layer is the
Law of Lateral Continuity
Law of Superposition
Law of Original Horizontality
Law of Relative Dating
18
What is the best evidence that layers of sedimentary rock were deposited about the same time?
Fossil remains
Chemical composition
Particle size
Distance below the surface
19
What geologic time period is known as The Age of Fishes?
Cretaceous Period
Cenozoic Period
Ordovician
Devonian Period
20
When did dinosaurs first appear on Earth?
In the Jurassic Period
At the end of the Cretaceous Period
In December of 2012
During the Triassic Period
21
Cross-cutting relationships states that a vein of rock that cuts across a rock's layer is
older than the rock's layers
the same age as the rock's layers
younger than the rock's layers
the same type of rock as the rock's layers
22
The numeric age of an object is known as its
relational age
relatlive age
comparative age
absolute age
23
Sediments settle, flatten out & solidity. The strata becomes sedimetary rock. This illustrates
the principle of correlations
the prinicple of orignal horizontality
the principle of relative unconformity
the principle of corss-cutting relationships
24
According to the impact hypothesis, dinosaurs became extinct when
a giant meteor crashed into Earth
volcanic activity increased a great deal
the continents crashed together
they began smoking non-filter cigarettes
25
A layer of rock is older than the layers above it and younger than the layers below it. This is
the Law of Unconformities
the Principle of Cross-cutting Relationships
the Principle of Strata Relationships
the Law of Superposition
