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Digging Into Earth's Past
Test Description: Benchmark Review
Instructions: Answer all questions to get your test result.
1) Fossils are important when studying the history of Earth becuase fossils provide evidence of all of the following EXCEPT:
A
how groups of organisms changed over time
B
how oceans originally formed
C
changes in Earth's surface
D
how environments on Earth have changed over time
2) Fossils of Woolly Mammoths have been discovered in the rock layers of Mexico. Which statement provides the BEST explanation for this discovery?
A
Mammoths lived in many different climates
B
The climate of Mexico has changed over time
C
Mexico was once covered by cold, fresh water
D
Mammoths had adapted to the warm temperatures of Mexico
3) What is a fossil?
A
the preserved remains or traces of an organism
B
an unusal type of rock
C
any dead organism
D
a perfect copy of a rock
4) Fossils are almost never found in igneous rocks because the organisms that form fossils
A
require great pressure to form fossils
B
are buried under sand
C
get trapped in sedimentary layers
D
are destroyed by the heat
5) A fossil formed when minerals replace all or part of an organism is called a:
A
mold
B
petrified fossil
C
trace fossil
D
cast
6) Which type of fossil can provide clues about the activities of ancient organisms?
A
trace fossils
B
remains preserved in amber
C
molds and casts
D
carbon films
7) The Geologic Time Scale is a record of
A
the thickness of sedimentary rock layers
B
the life forms and geologic events in Earth's history
C
the rate of fossil formation
D
the time since the evolution of dinosaurs
8) What do most scientists think caused the mass extinction of dinosaurs and other organisms at the end of the Cretaceous Period?
A
Dinosaurs could not adapt to Earth's changing conditions
B
The dinosaurs ate too many other organisms and then starved
C
An ice age covered most of Earth with ice
D
Dinosaurs were eaten by larger mammals
9) The Geologic Time Scale is most appropriately measured in the following units:
A
Minutes and Seconds
B
Eras and Periods
C
Decades and Centuries
D
Months and Years
10) The Law of Superposition states that the oldest rock layers will be found
A
near the middle of a rock formation
B
at the top of a rock formation
C
at the bottom of a rock formation
D
on the outside of a rock formation
*select an answer for all questions
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