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10 questions
Trace fossils are recognized as evidence of what pre-existing life?
animals
plants
plants and animals
neither plants nor animals
Which process is responsible for compressing successive strata in the earth?
deposition
faulting
folding
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 are the same age.
The layers have different layers with the youngest on top.
The layers have different layers with the oldest on top.
The layers have different ages with the youngest on bottom.
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 example is classified as a body fossil?
footprint
a worm trail
ancient vertebra
fossilized bird droppings
What is an example of a trace fossil?
footprints
bones
eggs
teeth
Which type of fossils are used to identify specific time periods?
trace fossils
body fossils
index fossils
all fossils
Which example is a trait of an index fossil?
resembles a living species
found in limited areas
fount in limited time spans
a particular kind of organism
Which series of words describes lengths of geological time from shortest to longest?
eon < era < period
era < period < eon
period < era < eon
era < eon < period
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