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Earth Science-Chapter 12-13
Test Description: Earth's History
Instructions: Answer all questions to get your test result.
1) A rock with coral and shells in it would have existed in which environment originally?
A
Lake
B
Ocean
C
Swamp
D
Forest
2) During which period did the greatest mass extinction on Earth occur?
A
Permian
B
Cretaceous
C
Triassic
D
Devonian
3) The time needed for one half of an isotope to decay.
A
Extinct
B
Radioactivity
C
Half Life
D
Isotope decay
4) Which of the following is NOT a division on the geologic time scale?
A
Period
B
Century
C
Eon
D
Era
5) Uranium 238 has a half life of 4.5 billion years. If a 4g sample has decayed to 2g, what is the age of the sample?
A
13.5 billion years
B
9 billion years
C
2.25 billion years
D
4.5 billion years
6) Which of the following is NOT an advantage mammals have over reptiles?
A
Warm blooded
B
Body hair/fur
C
Efficient heart/lungs
D
Walk upright
7) True or false: a fault is younger than a rock it cuts through.
A
False
B
True
8) Dinosaurs are the ancestors of which living organism?
A
lizards
B
birds
C
frogs
D
snakes
9) Humans were able to migrate from Asia to North America because...
A
the continents were closer together then
B
they sailed across the ocean
C
and land bridge once connected the 2 continents
D
they could swim really far
10) Which of the following is NOT a reason why scientists believe animals such as wooly mammoths and saber toothed cats became extinct?
A
Humans hunting them
B
Migration
C
Disease
D
Climate change
*select an answer for all questions
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