Category - North America

The Chalk Hill AVA in Sonoma contains soil that is made out of what?
  1. Chalk
  2. Limestone and chalk
  3. Red clay
  4. Volcanic ash, sand, and loam
Answer: D - The Chalk Hill AVA in Sonoma is made out of volcanic ash, sand and loam. There is no chalk in Chalk Hill; it appears white due to the volcanic ash from the Mount St. Helens eruption.
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