What does the ploughing do

The prime purpose of ploughing is to turn over the uppermost soil, so bringing fresh nutrients to the surface, while burying weeds and crop remains to decay. Trenches cut by the plough are called furrows. In modern use, a ploughed field is normally left to dry and then harrowed before planting.

answer; (b) ; /stronger bonds between the nations of africa

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane