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.
China has changed in many ways both socially and culturally in  the past 100 years.  100 years ago China was very cut off from the rest of the world.  They had yet to open â¦ their doors to the rest of the world.They  ways things were done their might seem very strange to us.    Such as their clothing.ajor advances in Air travel over the last 100 years have allowed for people to travel 100s if not 1000s of times faster intercontinentaly. Advances in engine technology have â¦ also greatly improved the performance of cars and other motor vehicles, such as trains and boats.