Power sharing is important because absolute power corrupts absolutely. In order for a democracy to take place the power must not be in the hands of one.
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Power sharing is desirable for democracy because:

1. If the power is not shared between the governments then there would be a burden of pressure in the hands and heads of the ruler.
2. Power should be shared between other governments to reduce the pressure.
3. If there is pressure in the heads of ruler then he would stop working for the welfare of the people.
So power sharing is essential for democracy.
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