Question

What process involves the downward movement of pesticides through the soil, facilitated by rainwater or irrigation water?

1. Leaching describes the downward movement of pesticides through the soil profile.
2. Absorption is the process of downward soil movement of pesticides.
3. Volatilization is the downward movement of pesticides in soil.
4. Runoff is the process of downward pesticide movement in soil.

• A. i only
• B. iii only
• C. All
• D. None of these

Answer 1

Answer:

A. i only

• Physical transport of pesticides over the ground surface by rainwater - Runoff

• Movement of pesticides downward through the soil by rainwater or by irrigation water - Leaching