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Question
Even before the proposal of continental drift, paleontologists recognized that some sort of land connection was needed to account for the identical fossil organisms found on multiple continents. Select the correct hypothesis or hypotheses these paleontologists developed.A) Sea level falling
B) A chain of island stepping stones
C) Floating debris used as rafts and sea level rising
D) A transoceanic land bridge
E) Island stepping stones, transoceanic land bridge, and floating debris used for rafts
Answer
This answer is hidden. It contains 1 characters.
Related questions
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A) Missing time.
B) Faults, fractures are younger than the rocks they cut through.
C) Sedimentary layers/lava
D) The oldest is on the bottom, the youngest on top.
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F) Chunks of weathered rock are older than the rock they are contained in.
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A detrital sedimentary rock can be radiometrically dated because the clasts formed at the same time as the rock.
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B) Paleozoic
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D) Cenozoic
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What does "-zoic" in the eras of the geologic time scale refer to?
A) Life
B) Water
C) Rock
D) Fossilization
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Which era are we currently in?
A) Mesozoic
B) Precambrian
C) Paleozoic
D) Cenozoic
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What is the effective maximum range for carbon-14 dating?
A) 100,000 years
B) 70,000 years
C) 10,000 years
D) 13,000 years
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What is the half-life of potassium-40?
A) 1.3 billion years
B) 704 million years
C) 14.1 billion years
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You are an archaeologist researching artifacts left behind by Francisco Pizzaro's conquest of Peru in the 1530s. In order to confirm the authenticity of the leather artifacts, you are performing radiometric dating using an isotope pair that has a half-life of 250 years. In order for the artifacts to date back to the time of Pizzaro's conquest, approximately how much original radioactive isotope must be left in the artifacts?
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B) An atom that has more or fewer electrons than it should
C) An atom that has double the protons of a stable atom
D) A nucleus of an atom that has split during the decay process
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B) Matching up rocks of similar age in different regions
C) Putting events in order from first to last
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________ is the scientific study of fossils.
A) Quaternary geology
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C) Geomorphology
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A) basaltic
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B) Staurolite
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A) Limestone
B) Conglomerate
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A) 0 km
B) 30 km
C) 25 km
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What kind of metamorphism will occur if the environmental conditions are 400C and 5 kilobars?
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