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30 April, 15:59

Visualize five horizontal sedimentary strata exposed in a cliff or canyon wall identified by consecutive numbers, 1 being the lowest bed and 5 being the highest. Which of the following statements concerning the strata are true?

a. Bed 4 is older than bed 2.

b. Bed 3 is older than beds 2 and 4.

c. Bed 5 is the oldest.

d. Beds l and 3 are older than bed 4.

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Answers (2)
  1. 30 April, 18:21
    0
    bed 2 was deposited before bed 3

    Explanation:

    Which of the following conclusions can be made about the sedimentary layers?

    bed 2 was deposited after bed 3

    bed 1 is the youngest

    bed 3 was deposited before bed 1

    bed 2 was deposited before bed 3
  2. 30 April, 19:37
    0
    Only the 4 th statement is true that is bed 1 and 3 are older than 4.

    Explanation:

    The 5 beds are numbered from 1 to 5, 1 being the lowest and 5 being the topmost bed.

    We are given 4 statements and we have to find out which all are true.

    (a) Bed 4 is older than bed 2

    This is wrong because the lower beds are older than beds that are higher.

    (b) Bed 3 is older than beds 2 and 4

    This is also wrong because the 2 is older than 3

    (c) Bed 5 is the oldest

    This is wrong because bed 1 is the oldest

    (d) Beds 1 and 3 are older than 4

    This is true as lower beds are older
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