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Author Question: S waves and P waves are earthquake body waves. S and P stand for a. sudden and post. b. sigma and ... (Read 37 times)

rlane42

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on: Jul 28, 2018
S waves and P waves are earthquake body waves. S and P stand for
 a. sudden and post.
  b. sigma and pi.
  c. slow and proper.
  d. secondary and primary.

Question 2

Which of the following is a negatively charged polyatomic ion?
 a. Ammonium ion
  b. Oxide ion
  c. Sodium ion
  d. Nitrate ion


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shoemake

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Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


rlane42

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Reply 2 on: Jul 28, 2018
Excellent

patma1981

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Reply 3 on: Yesterday
Gracias!

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