In Africa, what is a handicap to national unity?

Allegiance to a tribe

Explanation:

It is true that allegiance to a tribe is one handicap to national unity in Africa. When Africa was divided into countries, it did so with little consultation of local people. Instead, Africa was divided into countries by European powers in what was known as the "Scramble for Africa." This meant that national lines often cut across tribal lines. In general, allegiance to a tribe was a stronger tie for people, and this has occasionally been a handicap to national unity in the continent.

well, paralell is parallel. i am providing links to .

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a series circuit is one with all the loads in a row. there is only one path for the electricity to flow. if this circuit was a string of light bulbs, and one blew out, the remaining bulbs would turn off.

unlike in series circuits, a charge in a parallel circuit encounters a single voltage drop during its path through the external circuit. the current through a given branch can be predicted using the ohm's law equation and the voltage drop across the resistor and the resistance of the resistor.

a parallel circuit has certain characteristics and basic rules: a parallel circuit has two or more paths for current to flow through. voltage is the same across each component of the parallel circuit.

which sentences ? that question is incomplete