For the test on things fall apart what is an ibo practice that was good for thier people, but seen as an abomination by outsiders?and can u also...

One example of an Ibo custom that was good for their
people, but seen as an abomination to the colonialists was the practice of banishing
those afflicted with “the swelling” into the woods to die.  Although this may seem like
a harsh custom, it was a necessary one in such a small society.   We can presume a
couple of things—first, that the Ibo people had no medicinal cure for this mysterious
disease and, secondly, that it was contagious.  Therefore, it was necessary to remove
those afflicted with this condition in order to make sure that their entire tribe was
not wiped out by disease.  Even if, let’s say, twenty percent of the population were
affected by the disease, that would seriously jeopardize the lives of the WHOLE tribe
because they were so interdependent in terms of growing yams which sustain their lives. 
This is just one example of the many customs that seem brutal, but are crucial to the
survival of such a small community that is extremely dependent upon one another.