Please help on both questions

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment

Less developed nations have low literacy rates. true or false