Polychlorinated biphenyls:Question 13Select one:a.are POPs.b.break down easily in the environment.c.are endocrine disruptors.d.Both A and C

One of the following statements is not correct. It is:Question 5Select one:a.Endocrine disruptors are found in plastic bottles.b.DDT is an endocrine disruptorc.Endocrine disruptors are not found in toys.d.Dioxin is an endocrine disruptor.

Persistent organic pollutants (POPs) are a concern because being Blank______.Multiple choice question.they degrade rapidly and their components, which easily spread, are more dangerous than the POPs themselvesstable, they do not degrade easily and have become extremely widespread in the environmentwater soluble, they precipitate out of the atmosphere and tend to build up in high concentrations in areas close to where they were usedNeed help? Review these concept resources.

what is the major toxicity of polyvinyl chloride  (PVC) containers  ?Question 9Select one:A.all of the aboveB.liver toxicityC.kidney toxicityD.lung toxicity

Question 14: VerticalCOMPREHENSIONRead the following unedited passage and pick the statement(s) that is/are accurate among the options provided.Natural water environments are threatened by several harmful chemicals derived from artificial products [1]. Many of these chemicals are endocrine disrupting chemicals (EDCs), which pose a threat to the environment and human health (e.g., causing reproductive and sexual abnormalities) [2]. Bisphenol A (BPA), a representative EDC, is highly soluble in water (120 to 300 mg/L), and it is found in drinking, surface, and wastewaters because it is not completely removed during conventional wastewater treatment [5]. Several methods, including physical separations ([6], [7]), biological methods ([1], [5]), and advanced oxidation processes (AOPs) ([2], [8], [9]), have been developed to remove BPA from aqueous solutions. Separation methods, such as adsorption and filtration, are not suitable for low concentrations of BPA when considering the removal efficiency and cost. Additionally, detachment and reprocessing treatments for BPA are required after separation from solution [10]. BPA is readily degraded by microorganisms [11]; however, when using biological methods, the treatment time typically increases linearly with the concentration of BPA.EDCs, which are a type of BPA, are known to result in reproductive and sexual abnormalities.Conventional wastewater treatment is found to be ineffective at completely removing BPA, as it does not dissolve very well in water.Owing to the removal efficiency and cost, physical separation methods such as adsorption and filtration have been found to be unsuitable for removing low concentrations of BPA from aqueous solutions.Biological methods can be used to remove BPAs from aqueous solutions, but a limitation of this method is that the treatment time is generally directly proportional to the concentration of BPA.

Persistence of chemicals can be a concern for health because such Blank______.Multiple choice question.chemicals are unstable and they degrade rapidly in toxic agents that bioaccumulate in living organismsreactive chemicals are highly water-soluble and easily move from the environment into living organisms where they interfere with cell functionstable chemicals are resistant to degradation and can cause problems long after application and far from the sites where they were originally usedNeed help? Review these concept resources.