You are presented with the question "Plants respond to what to disrupt plant disease?" and the following answer choices: 
- reducing acid rain
 - competition
 - bending light rays
 - Leptospirosis
 - temperature changes
 - green manures
 - Localized damage
 - sun's heat

Now knowing that plants respond to daily and seasonal cycles and to disease and green manures can be managed to disrupt plant disease cycles or to suppress nematodes , choose the best answer.


 

      green manures   