help me answer these questions

1.How have the patterns of linguistic geography in Central Asia been transformed over the past twodecades? 2.How does the geopolitical situation of Afghanistan differ from those of the other countries of the region,and why is Afghanistan’s political history so different from those of its neighbors?3.Is it reasonable to draw connections between the Soviet and the U.S. experience in Afghanistan? In whatways have they been similar and different?4.Lop Nur in China’s Xinjiang autonomous region was once a lake, but now it is a dried-out salt flat thathas been used for nuclear tests and that contains the world’s largest potash fertilizer plant. Why did thelake disappear, and why has Chinese used the dissected lakebed for nuclear tests and potash processing?