How did iron technology help and hurt the Nok civilization?

Durable ir.on tools such as h.o.es, hand-ax.es and cleavers were put to good use to boost agricultural efficiency. Nok farmers were able to grow cereals like sorghum and such vegetables as pumpkins (which were represented in terracotta).

Explanation:

the graphs indicate that few people in bolivia work in industry, as that is the least expressive sector shown in the respective graphic.

four sitting presidents have been assassinated while in office but the first was abraham lincoln,