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Author Question: Air pollution helps protect building stone from weathering. Indicate whether the statement is true ... (Read 159 times)

appyboo

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on: Aug 7, 2018
Air pollution helps protect building stone from weathering.
  Indicate whether the statement is true or false

Question 2

Alternating wetting and drying can facilitate soil creep.
  Indicate whether the statement is true or false


mjbamaung

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Reply #1 on: Aug 7, 2018
Answer to Question 1

F

Answer to Question 2

T


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