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Geologic Time Review
Test Description: Review for the Geologic time test.
Instructions: Answer all questions to get your test result.
1) In what way does the law of superposition show geological evolution?
A
the youngest layer is on the bottom and the oldest layer is on the top
B
the youngest layer is in the middle and the oldest layer is on the top
C
there is no difference in the position of layers in regards to age
D
the oldest layer is on the bottom and the youngest layer is on the top
2) Which of the following is the BEST example of an index fossil?
A
a trilobite fossil
B
an animal’s paw print
C
a dinosaur bone
D
a fern print on a rock
3) What is the BEST example of an unconformity?
A
a crack in the plates
B
the crust of the Earth
C
missing layer of rock
D
sedimentary deposits
4) How would a biologist BEST determine the reason for extinction of a species?
A
examine fossils of plants and animals in different rock layers to see how these organisms have chang
B
conduct experiments on carbon dating
C
analyze data collected on rock layers over time
D
read previous theories for connections
5) The process by which the age of a rock is determined by measuring the amount of radioactive isotopes present in the rock or rock sample
A
Radioactive Dating
B
Relative dating
C
Absolute Dating
D
Law of superposition
6) If you found many tracks of the same species of prehistoric animal in an area, what might you conclude about the animal?
A
It was the only species there
B
It lived in groups
C
It hunted alone
D
It did not produce many offspring
7) Scientists in Alaska discover fossils of several organisms that they know lived only in warm climates. What does this discovery tell them about the climate of Alaska in the past?
A
The organisms also lived in cold climates.
B
Alaska used to be located near the equator.
C
The climate of Alaska was warmer in the past than it is today.
D
The climates of Alaska has not changed.
8) Fossils of warm-weather plants were found on an island in the Arctic Ocean. What can best be concluded from this discovery?
A
The island drifted from a tropical region to its present location.
B
Ocean currents carried the plants to the island.
C
Spores of plants drifted by air currents to the island.
D
Seeds of plants have been carried to the island by migratory birds.
9) Which best explains how geologic time scales can help scientists study the evolution of life on Earth?
A
They compare the life histories of species that have used rocks as habitats.
B
They correlate the existence of life on Earth with geological events.
C
They describe the existence of rocks before there was life on Earth.
D
They show that geological features have evolved at the same rate as organisms.
10) A layer of marine fossils is discovered in a desert environment. Which hypothesis best explains the discovery?
A
Erosion turned most of the limestone in the area into sand.
B
Volcanic activity once occurred in the area.
C
The area was once covered by water.
D
A catastropic event once occurred in the area.
*select an answer for all questions
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