Context: In order to reduce negative impacts, it is desirable that pesticides be degradable or at least quickly deactivated in the environment. Such loss of activity or toxicity of pesticides is due to both innate chemical properties of the compounds and environmental processes or conditions. For example, the presence of halogens within a chemical structure often slows down degradation in an aerobic environment. Adsorption to soil may retard pesticide movement, but also may reduce bioavailability to microbial degraders.

Question: What feature is wanted to assist with reducing negative impacts of pesticides?
Answer: that pesticides be degradable

Question: How else can negative impacts of pesticides be reduced?
Answer: quickly deactivated in the environment

Question: What is one way by which pesticides lose their efficacy?
Answer: presence of halogens

Question: What may slow pesticide movement?
Answer: Adsorption to soil

Question: What characteristic is desirable in soil for planting?
Answer: Unanswerable

Question: What makes microbes degrade?
Answer: Unanswerable

Question: What slows down degradation of microbes?
Answer: Unanswerable

Question: What kind of environment is needed to degrade microbes?
Answer: Unanswerable

Question: What slows the movement of microbes?
Answer: Unanswerable