Question

How can pesticides be transported over long distances as particles?

1. Pesticides can be carried long distances by adsorbing onto dust particles in the air.
2. Pesticides primarily travel long distances by dissolving in rainwater.
3. Long-distance transport occurs mainly through absorption into plant tissues.
4. Pesticides are transported long distances through microbial degradation.

• A. i only
• B. i, iii
• C. ii, iii
• D. i, ii

Answer 1

Answer:

A. i only

• Transfer of pesticides either from plants surface, water or soil to air - Volatilization

• Volatilization depends on the vapour pressure of the pesticide compounds.

• The pesticides maybe carried to long distances as particles as they get adsorbed onto the dust particles.