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Author Question: A(n) ________ is an erosional unconformity with parallel beds or strata above and below. A) ... (Read 45 times)

asmith134

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on: Jul 14, 2018
A(n) ________ is an erosional unconformity with parallel beds or strata above and below.
 
  A) angular unconformity
  B) disconformity
  C) nonconformity
  D) exconformity

Question 2

After three half-lives, ________ of an original, radioactive, parent isotope remains and the rest has decayed into the daughter isotope.
 
  A) 75 or three-fourths (3/4)
  B) 50 or one-half (1/2)
  C) 25 or one-fourth (1/4)
  D) 12.5 or one-eighth (1/8)


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Mholman93

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: D


asmith134

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Reply 2 on: Jul 14, 2018
YES! Correct, THANKS for helping me on my review

smrtceo

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Reply 3 on: Yesterday
Wow, this really help

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