Which statement about the relations between Columbus and Native Americans is true?

the american civil war was not caused   by slavery but by economic factors.

b. young children below the minimum age were working

urban people were mostly involved in jobs that required phyisical labor they are paid daily wages (minimum wages) from which they evoke their living. daily wages also mean that the day they don't turn up for work ,even due to sickness, they aren't paid anything.