Which geologic principle is the reason rock layers typically form parallel to each other? a. cross-cutting relationships. b. original horizontality. c. superposition. d. unconformities.

B. Original horizontality

Explanation:

     Original Horizontality Principle is the Relative Chronology Principle which states that sediments are always deposited in horizontal layers. Any geological phenomenon that changes the horizontality is always after sedimentation.

    In the Original Horizontality Principle, the original layers are horizontally separated by flat and parallel surfaces (stratification joints - surfaces that support the layers).

B. Original horizontality.

Explanation:

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which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

ask for details followreport by gui00g7888888888888 31 minutes ago

d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

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explanation: