Author Question: If you lived adjacent to an unpaved road that generated a lot of dust in your home, what could you ... (Read 74 times)

luvbio

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If you lived adjacent to an unpaved road that generated a lot of dust in your home, what could you do to diminish the dust (besides paving the road)?
 
  What will be an ideal response?

Question 2

Dust in the southeastern United States is thought to come from Africa. How can this be, when the prevailing wind pattern at this latitude is westerly?
 
  What will be an ideal response?



SVictor

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Answer to Question 1

I would water the road on busy days because the moisture causes cohesion of the dust grains. The cohesive grains are not as easily picked up by the wind as are dry grains.

Answer to Question 2

The southwestern Sahara is at a more southerly latitude than the southeastern United States, and is in a zone of prevailing easterly winds. These winds transport Sahara dust across the Atlantic Ocean and into the Caribbean Sea. Summer heating over the southeastern U.S. lowers surface air pressure, which produces a seasonal wind from the south that draws in the dusty air from the Caribbean.



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