easy · SAT Reading & Writing
Volcanic ash can enrich nearby soil with minerals such as potassium and phosphorus. Over time, farmland near dormant volcanoes often becomes some of the most fertile land in a region.
Which choice best states the main idea of the text?
- Volcanic ash always destroys nearby farmland.
- Volcanic ash makes soil dangerous for farming.
- Farmers avoid living near volcanoes for any reason.
- Volcanic ash can make nearby soil more fertile for farming.
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