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Author Question: On May 18, 1980, a massive eruption of Mt. St. Helens in Washington State sent a huge plume of ash ... (Read 60 times)

OSWALD

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on: Jul 16, 2018
On May 18, 1980, a massive eruption of Mt. St. Helens in Washington State sent a huge plume of ash more than 50,000 feet into the air. Over the next two weeks, the ash traveled around the world. To move that far, the ash would've had to
 
  A) dissolve in the nitrogen of the air.
  B) combine with moisture in the troposphere.
  C) bind to aerosols in the lithosphere.
  D) reach into the stratosphere.

Question 2

Efforts to limit global deforestation should be concentrated
 
  A) in the northern hemisphere.
  B) in South America, Indonesia, and Africa.
  C) wherever there is the greatest concentration of people.
  D) in regions with the highest production of agricultural crops.


Jordin Calloway

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

D

Answer to Question 2

B


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