Weegy: A complex ecosystem that plants grow in best describes soil.
User: 20. How does the USDA define a concentrated animal feeding operation (CAFO)?
A. A CAFO is defined as an AFO with over 1,000 animals of any size kept for the majority of a year.
B. A CAFO is defined as an AFO with over 1,000 animal units kept for the majority of a year.
C. A CAFO is defined as an AFO with over 1,000 animal units kept for over 45 days a year.
D. A CAFO is defined as an AFO with over 1,000 animals of any size kept for over 45 days a year.
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