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Planet earth
Planet earth
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Planet Earth - Review- Topics 8-10
Flashcards
23 cards
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Practice quiz
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Questions
23
Answers
1
The correct order of geological time starting with the largest / ending in smallest?
period, era, eon
eon, era, period
era, period, eon
era, eon, period
2
Trace fossils are evidence of animal activity
True
False
3
Which of the following is a fossil fuel?
natural gas
oil
all of the above
coal
4
Dinosaurs became extinct about ____________ years ago.
120 million years ago
5.5 million years ago
66 million years ago
1 billion years ago
5
Petroleum is a manufactured mixture of hydrocarbons.
False
True
6
Species of birds and mammals existed during the Mesozoic Era.
false
true
7
The actual organism or part of it preserved as a fossil is called ____
true fossil
original remains
petrified
8
Which statement about fossil fuels is NOT true?
bitumen is a form of petroleum
Alberta is a major source of fossil fuels in Canada
fossil fuels are a renewable source
9
What does carbonaceous film mean?
outline of an organism from carbon residue
rock like substance
carbonated fossil
10
Cenozoic Era life‑forms include ___.
marine mammals
reptiles
all of the above
humans
11
Most fossils occur when the organism is buried slowly
False
True
12
The age of dinosaurs occurred in the Paleozoic Era.
False
True
13
Humans appeared in the __________ era
Paleozoic
Cenozoic
Mesozoic
14
All of the followingEXCEPT __would have a good chance of being preserved as a fossil.
shark teeth
jellyfish
shells
animal bones
15
Why are fossils useful?
Fossils help us understand when and where organisms lived
help us know when certain organisms lived and became extinct
Fossils can be used to determine the relative age of rocks
All of the above.
16
In undisturbed rock layers where shale lies between sandstone below and limestone above __.
beds are the same age
sandstone is the youngest
limestone is the youngest
17
The largest divisions in the geologic time scale are called ________.
eons
pangaea
periods
18
In which rock is petroleum most commonly found?
metamorphic
igneous
sedimentary rock
19
Cavity in the rock is called a _____
fossil
cast
mould
20
Dinosaur footprints are trace fossils.
True
False
21
Which is a heavy, almost solid form of petroleum?
coal
oil
bitumen
sludge
22
What is the term for a distinct layer of sedimentary rock?
level
layer
index fossil
strata
23
The division of Earth's history into smaller units is referred to as _______.
eras
periods
sequence of events
geologic time scale
