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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
Swamp
B
Ocean
C
Forest
D
Lake
2) During which period did the greatest mass extinction on Earth occur?
A
Permian
B
Triassic
C
Devonian
D
Cretaceous
3) The time needed for one half of an isotope to decay.
A
Extinct
B
Half Life
C
Isotope decay
D
Radioactivity
4) Which of the following is NOT a division on the geologic time scale?
A
Century
B
Period
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
4.5 billion years
B
2.25 billion years
C
13.5 billion years
D
9 billion years
6) Which of the following is NOT an advantage mammals have over reptiles?
A
Walk upright
B
Warm blooded
C
Body hair/fur
D
Efficient heart/lungs
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
frogs
B
birds
C
lizards
D
snakes
9) Humans were able to migrate from Asia to North America because...
A
they sailed across the ocean
B
and land bridge once connected the 2 continents
C
the continents were closer together then
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
Climate change
C
Disease
D
Migration
*select an answer for all questions
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