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Author Question: A sand dune is considered active when A) it is being moved by wind. B) it is being colonized by ... (Read 98 times)

KimWrice

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on: Jul 16, 2018
A sand dune is considered active when
 
  A) it is being moved by wind.
  B) it is being colonized by new plants.
  C) it has been formed by volcanic activity.
  D) it is being dissolved into the sea.

Question 2

The largest typical size for grains of sand that can be commonly moved by wind is
 
  A) 5 micrometers.
  B) 0.5 millimeter.
  C) 1.0 millimeter.
  D) 1.0 centimeter.


Viet Thy

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

Answer: A

Answer to Question 2

Answer: B


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