Maintaining unsprayed buffer zones around sensitive features helps protect groundwater from pesticide contamination.

• A. False
• B. Not related
• C. True
• D. Only around wells

Answer: (C)

Maintaining unsprayed buffer zones around sensitive features creates a protective boundary that reduces the chances pesticides reach groundwater. These zones intercept the main ways a pesticide can move toward groundwater: spray drift, surface runoff that can carry residues into water sources, and leaching through the soil that can carry chemicals down to the aquifer. A vegetation-filled, unsprayed strip acts as a natural filter, slowing water flow, trapping or degrading some compounds, and giving more time for natural processes to reduce residues before they reach groundwater. Because safeguarding drinking water and other groundwater resources is the goal, buffer zones are designed for this purpose around all sensitive features, not just one specific feature. So, keeping these unsprayed areas helps protect groundwater from pesticide contamination. The other ideas would either downplay the effect, claim it isn’t related, or suggest it only applies to wells, which doesn’t reflect the broader protective purpose.