Lindsay and her sister were born into a socially disadvantaged family. lindsay was adopted into a more privileged home. lindsay's iq score is likely to be: a. higher then her sister's score b. the same as her sister's score c. lower then her sister's score d. one standard deviation lower than her sister's score

Waste water from industries and domestic sources can be treated by chlorination or ultraviolet radiation. there are pros and cons to using either chlorine or uv radiation to kill harmful microorganisms. what is one reason chlorination would be preferred over ultraviolet radiation? a) chlorine only eliminates visible impurities and is ineffective against microorganisms. b) chlorine not only kills bacteria but provides a residual effect on returning microorganisms. c) uv radiation can be used only to treat drinking water and is ineffective in treating waste water. d) ultraviolet radiation is more effective