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Author Question: Tiny products of volcanic eruptions may remain aloft in the atmosphere for A) up to six months. ... (Read 18 times)

kwoodring

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on: Jul 16, 2018
Tiny products of volcanic eruptions may remain aloft in the atmosphere for
 
  A) up to six months.
  B) up to three years.
  C) about ten years.
  D) about fifteen years.

Question 2

A grain size of 0.1 millimeter typically requires a wind speed of ________ in order to be picked up.
 
  A) 1 kilometer per hour
  B) 5 kilometers per hour
  C) 8 kilometers per hour
  D) 15 kilometers per hour


snackralk

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B


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