GLY 101 UB
Bratcher Test 1
Study Guide
questions and
answers
The Geologic Time Scale is divided unequally because it focuses on
dominant life forms or major events - answer True
If you equate Earth's history to a calendar year Humans have been
around since - answer 11pm December 31st
Uniformitarianism is succinctly summarized by which phrase? -
answer The present is the key to the past
The Hadean is a time when - answer Earth had no notable solid rock
What marked the end of Cenozoic Era - answer The rise of humans
The Mesozoic era is a time when - answer Dinosaurs!
, Trilobites died at the end of the - answer Paleozoic
Uniformitarianism: - answer Charles Lyell's idea that geologic
processes have not changed throughout Earth's history.
original continuity - answer layers are deposited in continuous
sheets
How did scientists determine the age of the earth before isotopes -
answer Counting generations in the bible, Comparing rates of
change on earth's surface, estimating evolution rates
James Ussher - answer used the Bible to calculate the Earth's age
(6000 yrs)
Alfred Wegner - answer Proposed the continental drift theory in the
1900s
James Hutton - answer father of modern geology
Harry Hess - answer Proposed the theory of sea-floor spreading
Charles Lyell - answer Uniformitarianism
How much remains after 2 half lives? - answer 25% parent 75%
daughter
Isotopes of different elements have different half lives - answer True
Bratcher Test 1
Study Guide
questions and
answers
The Geologic Time Scale is divided unequally because it focuses on
dominant life forms or major events - answer True
If you equate Earth's history to a calendar year Humans have been
around since - answer 11pm December 31st
Uniformitarianism is succinctly summarized by which phrase? -
answer The present is the key to the past
The Hadean is a time when - answer Earth had no notable solid rock
What marked the end of Cenozoic Era - answer The rise of humans
The Mesozoic era is a time when - answer Dinosaurs!
, Trilobites died at the end of the - answer Paleozoic
Uniformitarianism: - answer Charles Lyell's idea that geologic
processes have not changed throughout Earth's history.
original continuity - answer layers are deposited in continuous
sheets
How did scientists determine the age of the earth before isotopes -
answer Counting generations in the bible, Comparing rates of
change on earth's surface, estimating evolution rates
James Ussher - answer used the Bible to calculate the Earth's age
(6000 yrs)
Alfred Wegner - answer Proposed the continental drift theory in the
1900s
James Hutton - answer father of modern geology
Harry Hess - answer Proposed the theory of sea-floor spreading
Charles Lyell - answer Uniformitarianism
How much remains after 2 half lives? - answer 25% parent 75%
daughter
Isotopes of different elements have different half lives - answer True
