Which action did civil rights leaders plan in the summer of 1963 to bring national attention to racial inequity?
a. a mass gathering and march for freedom in washington,
d. c. b. a boycott of public transportation in jackson, mississippi
c. a protest demonstration at the united nations headquarters in new york
d. a sit-in at a segregated lunch counter in mobile, alabama

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.