cause of stratospheric ozone

 

QUESTION 1

_______________ are the major cause of stratospheric ozone depletion.

Chlorofluorocarbons (CFCs)

Perfluorochemicals (PFCs)

Polybrominated diphenyl ethers (PBDEs)

QUESTION 2

Many phthalates affect the _______________.

central nervous system

endocrine system

respiratory system

QUESTION 3

Which of the following groups of chemicals was widely used as insulating fluid in electrical equipment?

Dioxins

Polybrominated diphenyl ethers (PBDEs)

Polychlorinated biphenyls (PCBs)

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