What contribution did jonas salk make to science in the 1950s? a. he invented ddt, the “miracle” pesticide. b. he designed the first us satellite. c. he developed smaller computers. d. he created a vaccine against polio.

Chief justice earl warren stated, “separate educational facilities are inherently unequal.” what did the use of “inherently” imply about segregation? 1/ by its very definition, it cannot be equal. 2/ it is an integral part of american society. 3/ based on its meaning, separation is a natural inclination. 4/ it was intended to be a state right, not a national mandate.

The committee of correspondence: a)directed colonial militias b)organized boycotts of british goods. c) raised funds for colonial legislatures d) spoke with foreign governments.

Amarket dominated by one seller is called a monopoly. select the best answer from the choices provided t f