GEOS101 lab test #1 - Statistics

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Answer Stats

Question	Answer	% Correct
To the nearest 10 Ma years, how old is the earth? (decimal form e.g. 3.86 billion)?	4.56 billion	100%
What is the longest time unit in the Hierarchy?	Eon	100%
When did the Paleozoic eon begin?	542 Ma	75%
What percentage of species went extinct in the "mother of all extinctions"?	96%	75%
What is the shortest time unit in the Hierarchy?	Age	75%
What do the mm-thick dark and light grey bands represent on the fossil tree?	Age	75%
What is the oldest Eon?	Hadean	75%
What can we determine of the rocks that different fossils that we identify are found in by identifying these fossils?	The age	75%
What peninsula did the meteor that killed off all the dinosaurs land near to?	Yucatan	75%
What is the oldest mineral discovered on earth?	Zircon crystals	75%
How much time is represented by the Precambrian Era?	4,018	50%
What percentage of time (nearest 2 decimal points) is represented by the Phanerozoic Eon?	11.86%	25%
What is the age of the oldest rocks in Wellington?	200 Ma	25%
How much do mountains usually uplift per year?	20mm	25%
How much does sea level rise per year on average?	60mm	25%
What shape was the Belemnite fossil seen as?	Bullet	25%
Where are Grapholite fossils usually found?	Sand	25%
What does the chambers in a nautilus shell allow it to do?	Sink	25%
What do the protrusions on the Kina represent?	Spikes	25%
What is the central-ribbed area of a Trilobite called?	Thorax	25%
When did Gondwanaland break up?	125 Ma	0%

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