Is/are an insecticide and persistent organic pollutant. this has been banned in the us since 1972 in many countries because of these effects: developmental and reproductive toxicity, interference with thyroid function, and carcinogenicity.

People who spend more money on binoculars tend to know more about birds than people who spend less or none. this observation was almost certainly based on what kind of study? a. double-blind study b. correlation c. anecdote d. single-blind study