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.
- River valleys supported the rise of Chinese civilization, while some geographic feathers helped to isolate China from outside contact. - The Shang developed a dynasty and a culture that included a system of writing. - The Zhou claimed to rule using the idea of the Mandate of Heaven.