The answer is D. A universal motor uses brushes made out of carbon. The softness of the carbon allows easy direct radial contact with the communicator without any damage. It also allows easy reversal of rotor direction. A carbon brush has a flexible copper jumper lead attached.
Raw cotton crops doubled each decade after 1800 because farmers grew nothing else. The cotton gin sped production and the "de-seeding" of cotton so much that the economy improved so farmers stuck with cotton.
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It means that the person has alot of love and has lived there live that they dont need hope it was a asset to them