______________ is/are biodegradable and known to have (a) short persistence time(s).

Name: ______________ is/are biodegradable and known to have (a) short persistence time(s).
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Bt (Bacillus thuringiensis) is a naturally occurring bacterium that is biodegradable and has a short persistence time. It is commonly used as a biopesticide in organic farming. The other options (PBDEs, DDE, PCBs, and DDT) are synthetic chemicals that are persistent and can accumulate in the environment and in living organisms.

______________ Is/are Biodegradable and Known to Have (A) Short Persistence