UNIT+8+-+Soils+and+agriculture

**STUDY GUIDE**

** use this study guide 2012-2013**



**CLASS NOTES** **The problem of soil erosion and what farmers can do about it**
 * [[file:weathering and soils.ppt]] Introduction to soils, how they are formed, horizons**

 The Green revolution

**RESOURCES**

__Fertility Treatments__ Conservation Magazine, Spring 2013, on fertilizer

Jared Diamond's essay, The Worst Mistake in the History of the Human Race

The New York Times series: The Food Chain