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.
To the west of Ancient China there were large mountain ranges and deserts. The rest of Ancient China was developed by hills, valleys, and rich fertile plains these hills and plains were home to large farming communities. Two of the worlds longest rivers are found in Ancient China.