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11 questions
In the top rock layers
In the bottom rock layers
In the middle rock layers
Old fossils can be anywhere
Layer B on side #1 (left) is a match to which layer on side #2 (right)?
z
y
w
there is no match
Absolute age is defined as:
The age of rock determined by radiometric dating.
The age of rock based on living animals.
The age of rock based on its location.
The age of rock determined by relative dating.
Paleontologists discovered fish fossils in the arid deserts of western Egypt. What does the fossil evidence most likely indicate about this area’s geologic past?
The desert was once a vast ocean.
A giant ocean wave carrying sea life crashed onto the desert.
Mountains in the region once provided water from snowmelt.
The area was moved from the ocean to the desert by plate tectonics.
In 1897, a British scientist proposed that Earth was between 20 and 400
million years old. Based on radiometric dating, scientists now propose a
different age for Earth. Based on the most current radiometric dating data,
about how old is Earth?
40 billion years old
20 billion years old
4.6 billion years old
4.6 million years old
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