Question

DDT, DDE, PCBs and PBDEs are all ________

DDT, DDE, PCBs and PBDEs are all ________.
A
biodegradable and do not persist in the environment
B
toxic at the organism level but not at the ecosystem level
C
teratogens
non-biodegradable and subject to bioaccumulation and/or bioamplification
D
approved for use as pesticides by the EPA

Answer 1

The answer is C teratogens non-biodegradable and subject to bioaccumulation and/or bioamplification

DDT (dichlorodiphenyltrichloroethane) is persistent, non-degradable insecticide and organic pollutant readily accumulated to soils and consequently affects organisms.
DDE (dichlorodiphenyldichloroethylene) is non-degradable pesticide toxic to birds at the first place.
PCBs (polychlorinated biphenyls) are non-degradable organic compounds very toxic to the environment.
PBDEs (polybrominated diphenyl ethers) are non-degradable compounds very toxic to the environment, even able to affect brains of animals in the development period.