What evidence has shown conclusively that the oceanic crust is geologically young and that the parallel magnetic striping pattern of basalts is symmetrical with regard to oceanic ridges?
A)radiometric dating of oceanic basalts and sequences from continents exclusively
B)the unusually thin layer of oceanic sediments and ages of contained fossils exclusively
C)the existence of the same magnetic anomaly patterns in all ocean basins
D)radiometric dating of oceanic basalts and sequences from continents AND the unusually thin layer of oceanic sediments and ages of contained fossils
E)magnetic reversals contained in continental crusts that were at one time oceanic basalts
D
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A) semiotics. B) geographic literacy. C) topo-linguistics. D) environmental perception. E) semantics.
A blocky clastic sedimentary rock composed of clay would be called a
A) siltstone. B) mudstone. C) claystone. D) shale.
What type of chemical reaction is involved in the conversion of disulfide bonds to thiols?
A) addition B) reduction C) oxidation D) substitution
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Indicate whether the statement is true or false