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Earth Science Rocks And Fossils Review Questions 1 - 10
Test Description: Rocks, Fossils and all in between. Questions 1 - 10
Instructions: Answer all questions to get your test result.
1) Geologists have recently determined that Earth is approximately (or about):
A
4.6 billion years old
B
440 million years old
C
4.4 billion years old
D
44 billion years old
2) Eons are chunks of time that last:
A
billions of years
B
tens of millions of years
C
hundreds of millions of years
D
millions of years
3) Epochs are chunks of time that last:
A
hundreds of millions of years
B
billions of years
C
millions of years
D
tens of millions of years
4) Periods are chunks of time that last:
A
billions of years
B
tens of millions of years
C
millions of years
D
hundreds of millions of years
5) Eras are chunks of time that last:
A
millions of years
B
billions of years
C
tens of millions of years
D
hundreds of millions of years
6) Measurement of radioactive elements in rocks:
A
is not a good way to measure the age of a rock
B
doesn't do anything at all
C
provides the absolute age of the rock
D
is no good because of nuclear testing and bombs
7) What is the half-life of a radioactive element?
A
the time required for one-half of a given quantity of the element to decay
B
the time required for all of the radioactive element to decay
C
if you observe a radioactive element, it only decays half of the time and not the other
D
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8) We learn, in Geology, that which of the following comes first?
A
the "Age of Aquarius"
B
the "Age of Mammals"
C
dinosaur extinction
D
the creation of the Hawaiian islands
9) When did plants first colonize land?
A
about 3.8 billion years ago
B
about 440 million years ago
C
about 2 billion years ago
D
yesterday
10) Relative dating methods are used to determine:
A
the age, in years, of a geological event
B
if two people will get along
C
the chronological sequence of geological events
D
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*select an answer for all questions
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