at what point in don giovanni do the characters don giovanni and zerlina sing the duet, là ci darem la mano?

The region of the united states where beef and hog production is prevalent is the midwestthere are 12 states in this area including  illinois,  indiana,  iowa,  kansas,  michigan,  minnesota,  missouri,nebraska,  north dakota,  ohio,  south dakota, and  wisconsin. all of these states are known for their meat and such products. 

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Contemporary jazz is sometimes called smooth jazz

Good luck i dont know