.Hello everyone! My name is Li hua. I was born in Yun Nan province. I am from institute of physical chemistry. My major is physical chemistry. Physical chemistry is the study of macroscopic phenomena in chemical systems according to physical laws. It applies the principles and concepts of physics such as temperature, volume, quality and so on. In order to understand this subject, a good example for artificial rainfall, its principle can be explained by physical chemistry. My major is to study
