Aap thik ho khud hi answer de de rhe ho to puch kyon rhe ho
coalition government means in the election if any party does not gets highest are maximum number of vote in the election then with the help of other party they will win the election for example present Karnataka is a collision government
Different groups of social groups means different culture,different language different type of speaking,different clothes and,other thing ect
vertical power sharing means sharing the powers vertically in three different government they are union government, state government, local government
horizontal power sharing means sharing the powers horizontally in three different organs they are judiciary,legislative ,executive