Which statement about increasing spray droplet size and drift is supported by the material?

• A. Increasing droplet size reduces drift
• B. Increasing droplet size increases drift
• C. Droplet size has no effect on drift
• D. Drift is only influenced by adjuvants

Answer: (A)

Droplet size directly affects how far spray droplets can travel. Larger droplets have more mass and reach a higher settling speed, so they drop out of the air faster and are less carried off-target by wind or air currents. This is why increasing droplet size reduces drift—the spray is less likely to drift away from the target area. Of course, very large droplets can affect coverage, but drift risk itself drops with bigger droplets. The other ideas aren’t supported because drift is influenced by more than adjuvants, and changing size does have a real effect: bigger droplets tend to drift less, smaller droplets drift more.