—Because I like playing it

①图中NO₃^﹣的名称是____．

②该反应的本质是____结合生成沉淀．

③请再用AgNO₃作反应物之一，写出另一个与上述反应本质相同的化学方程式：____．

黄冈市某中学地理兴趣小组外出考察，他们在不同地区拍摄到了甲乙丙丁四幅图片。结合我国四大地理区域图及所学知识，完成下列各题。

    Mrs Smith's living room is large. There is a television in the room. The television is near the window. There are some magazines on the television. There is a table in the room. There are some newspapers on the table. There are some armchairs in the room. The armchairs are near the table. There is a stereo in the room. The stereo is near the door. Mrs Smith often listens to music from it.