The great migration involved the movement of approximately 6 million african-americans from the rural south to urban centers in the north. what was one of the things that led to this massive wave of migration?

About how many european immigrants were processed at the facilities on ellis island

Read the following passage. the early mill girls were of different ages. some were not over ten years old; a few were in middle life, but the majority were between the ages of sixteen and twenty-five. the very young girls were called "doffers." they "doffed," or took off, the full bobbins from the spinning frames, and replaced them with empty ones. based on the passage, early mill girls were mostly young. were mostly middle aged. were of a variety of ages. were mostly children.

The low and midlevel clouds that look like cotton balls are