Why are voting machines used? to minimize vote-counting errors

to increase the number of persons needed to administer elections

to eliminate the election process

to encourage manual vote counting

to minimize vote-couting errors

Explanation:

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(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.