Question

what is the primary concern associated with confined animal feeding operations (cafos) in agriculture?
increase in livestock population
reduction in methane emissions
increased soil fertility
contamination of waterways and land

Explanation:

Confined animal feeding operations generate large amounts of animal waste. If not properly managed, this waste can seep into waterways and contaminate land, causing environmental problems. An increase in livestock population is a characteristic of CAFOs rather than a primary concern. CAFOs typically contribute to, not reduce, methane emissions. While animal waste can increase soil fertility if used properly, the improper disposal in CAFOs leads to contamination issues.

Answer:

contamination of waterways and land