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Questions for Discussion: Earth System: Drought and Air Quality
- Why does drought cost people so much money?
- Research the 1930's Dust Bowl in the U.S. to determine why drought occurs.
- What factors are responsible for elevating dust levels in the atmosphere?
- How can dust from a drought or from overgrazing have a worldwide effect?
- How does this video illustrate the scientific view of "Earth as a system?"
