2本のエピソード
Soil Conservation Practices Willard Burnett
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- 科学
List some types of soil conservation practices and discusses the cost, effectiveness, practicality, and effort/maintenance of those practices.
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RevisedSoilConservationWillardBurnett
Talks about soil erosion and soil conservation practices we could use to help reduce soil erosion.
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Soil Conservation Practices-Willard Burnett
Brief description of some types of soil conservation practices. Talk about cost, effectiveness, practicality, and effort/maintenance of practice.