How was black labor supply drawn to the north?

first paragraph (and busy all the night ,with a silence deep and white )

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.

b toward the volcano.landward. the landward side of something is the side nearest to the land or facing the land, rather than the sea.