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Worksheets3.12 Geological History
Total questions: 20
Worksheet time: 20mins
Impressions of leaves are recognized as evidence of which pre-existing life?
animals
plants
plants and animals
neither plants nor animals
Trace fossils are recognized as evidence of which pre-existing life?
animals
plants
animals and plants
Neither animals nor plants
Which process is responsible for compressing successive strata in the earth?
deposition
folding
faulting
erosion
Which process is responsible for cracks in successive strata in the earth?
deposition
faulting
folding
erosion
Why can the geologic record be analyzed by looking at different rock layers?
All layers have the same age.
The layers have different ages with the youngest layers on top.
The layers have different ages with the oldest layers on top.
The layers have different ages with the youngest layers on bottom.
What causes the youngest layers to be on top?
sedimentation
faulting
folding
erosion
What can be used to determine the relative age of two rocks?
vertical position
the presence of unconformities
radioactive dating of each layer
relative age cannot be determined
Which factor is the most accurate in determining the absolute age of two rocks?
vertical position
the presence of unconformities
radioactive dating of each layer
comparing fossils in the layers
Which example is classified as a body fossil?
footprint of a stone-age individual
a worm trail
ancient shark vertebra
fossilized bird droppings
Which example is a body fossil?
dinosaur footprint
wooly mammoth tusk
shrimp burrow
fossilized animal droppings
Which example is a trace fossil?
dinosaur footprint
dinosaur bone
dinosaur egg
shark tooth
Which example is a trace fossil?
shrimp burrow
seashell
dinosaur egg
shark tooth
Which type of fossils are used to identify specific time periods?
index fossil
trace fossil
body fossil
all fossils
Which type of fossils are used to identify specific time periods?
imprint fossils
trace fossil
index fossil
body fossil
Which example is a trait of an index fossil?
resembles a living species
found in a limited area
found in a limited time span
a particular kind of organism
What do geologists use index fossils for?
dating of rock layers
identifying the type of rock in a rock layer
providing evidence of climate change
tracking migration of prehistoric species
Which series of words describes lengths of geologic time from shortest to longest?
eon <
era <
period
era <
period <
eon
period <
era <
eon
era <
eon <
period
Which series of words describes lengths of geologic time from longest to shortest?
eon >
era >
period
era >
period >
eon
period >
eon >
era
era >
eon >
period
Which unit of geologic time is the longest?
eon
epoch
era
period
Which unit of geologic time is the shortest?
period
era
epoch
eon
