what is your exact location if you are crossing the prime meridian and the altitude of polaris is 50 degrees

50°N, 0°

If you cross the prime meridian and the altitude of Polaris is 50° them the exact location is 50°N, 0° On the surface of the earth it is approximately 6200 miles from the equator to the North Pole or south pole.

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.

thomas jefferson is the answer