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Unit Test 2 Review Part 3
Test Description: Unit Test 2 Review part 3
Instructions: Answer all questions to get your test result.
1) Which is an example of a renewable energy resource?
A
biomass
B
oil
C
coal
D
gas
2) How do scientists know when a mass extinction took place
A
They find more fossils of plants
B
They find evidence of changes in Earth's Atmosphere
C
They find fossils of animals that died suddenly
D
They find a sudden disappearance of many fossil species
3) Which of the following would a scientist most likely use to find the absolute age of a rock
A
the geologic time scale
B
the law of superposition
C
radioactive dating
D
ice cores
4) What is the most likely result if two populations of the same species are separated for a long period of time?
A
both populations will become extinct
B
neither population will change
C
both populations will change in the same ways
D
the populations will change in different ways
5) The theory of natural selection tells us that
A
organisms with advantages will survive and reproduce at a faster rate than other organisms
B
organisms with advantages are not among the most dominant creatures on earth
C
animals with advantages in their environment will be more likely to become extinct
D
change is a horrible thing because it destroys species
6) Which would best allow a species to survive environmental changes?
A
small population
B
low mutation rate
C
genetic diversity
D
similar physical features
7) Where does sea-floor spreading occur
A
where two continental plates move apart
B
Where two oceanic plates collide
C
where an oceanic plate and a continental plate collide
D
where two oceanic plates move apart
8) The earliest part of Earth's history is called the
A
Cenozoic
B
Precambrian
C
Cambrian
D
Holocene
9) What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?
A
environmental changes
B
decrease in reproduction
C
gene mutations
D
selective breeding
10) Which group of animals appeared on earth most recently?
A
reptiles
B
amphibians
C
mammals
D
fish
*select an answer for all questions
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