It can be a challenge to distinguish allergic symptoms from dry eye symptoms. Treating a patient who presents with concurrent allergy and dry eye symptoms, however, can be an even greater challenge.
User: how did chinas physical geography affect the development of its early civilizationWeegy: Chinas physical geography affected the development of its early civilization, because they were not close to any other countires, so they did not know to trade with other countries or did not know any other cultures.
In fact, it is the deepest river in the world. The Yangtze flows through southern China. It has been one of Chinaâs main trade routes since ancient times. Due to its rivers, farming began in China more than 8,000 years ago. Farm villages eventually grew into cities. The first Chinese cities began near the Huang He or Yellow River about 2000 B.C. The Huang He River Valley was a birthplace of civilization in China. Geographic Features of China: Geographic Effects on China: Mountains. Desert. Rivers. Seas Bordering the Eastern Coast. Chinaâs geography isolated China in the past.