What best describes the use of differential reinforcement of other behaviors (DRO) procedures?

Rank the following from most to least devasting: ordovician,permaian,cretaceous, pleistocene

What was the primary purpose of the sibley commission in georgia? to schools across georgia integrate peacefully to discover how georgians felt about the issue of integration to lead non-violent protests to elect new civil rights leaders

What attorney successfully defended zenger during trail