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Which geologic principle is used when a geologist observes an outcrop of rocks and determines that the bottom layer is the oldest? A. uniformitarianism B. original horizontality C. superposition D. inclusion
Superposition is used when a geologist observes an outcrop of rocks and determines that the bottom layer is the oldest.
Expert answered|heididelosreyes|Points 1773|
Question|Asked by Charitybarron
Asked 7/11/2019 2:29:51 AM
Updated 1/5/2023 11:56:59 AM
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Questions asked by Charitybarron
The end of which era is marked by the largest extinction event in Earth’s history? A. Cenozoic B. Mesozoic C. Paleozoic D. Precambrian
Weegy: The Paleozoic Era is marked by the largest extinction event in Earth’s history. (More)
Question|Asked by Charitybarron
Expert Answered
Updated 7/11/2019 6:06:55 AM
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How old is a mammoth’s tusk if 25 percent of the original C-14 remains in the sample? The half-life of C-14 is 5730 years. A. 5730 years B. 11,460 years C. 17,190 years D. 22,920 years
Weegy: 11,460 years is a mammoth’s tusk if 25 percent of the original C-14 remains in the sample. The half-life of C-14 is 5730 years. Solution: Amount remaining= original amount/ 2^n 100/25 = 2^n 4=2^n n=2 t=nt 1/2 = 2 x 5730 yrs = 11,460 years (More)
Question|Asked by Charitybarron
Expert Answered
Asked 7/11/2019 2:02:56 AM
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the matching of outcrops or fossils among regions
Weegy: Correlation is the matching of unique rock outcrops or fossils exposed in one geographic region to similar outcrops exposed in other geographic regions. (More)
Question|Asked by Charitybarron
Expert Answered
Asked 7/11/2019 1:58:28 AM
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Which is not a typical characteristic of an index fossil? A. was commonplace while alive B. existed for a long period of time C. is geographically widespread D. is easily recognizable
Weegy: They existed for a long period of time -is not a typical characteristic of an index fossil. (More)
Question|Asked by Charitybarron
Expert Answered
Updated 12/5/2020 10:40:07 AM
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Which is not a typical characteristic of an index fossil? A. was commonplace while alive B. existed for a long period of time C. is geographically widespread D. is easily recognizable
Weegy: They existed for a long period of time -is not a typical characteristic of an index fossil. (More)
Question|Asked by Charitybarron
Expert Answered
Updated 228 days ago|8/30/2023 10:49:00 PM
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