What did the United States government do to keep track of the people coming from other countries? A) developed the Internal Revenue Service B) established processing stations to record their backgrounds C) delayed their arrival until they had visas D) hired special workers to visit immigrants to record their backgrounds

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an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without