It is sometimes also caused by dry eyes, meaning that your tear ducts are not producing enough fluid, or you have been exposed to a lot of wind or sun â and itâs also sometimes caused by smoke, chemicals or allergies. It is characterized by general redness (or pinkness) around the eyelid and the surface of the eye.
If you go by IMF, China is a developing country. You can see why. The difference between China and US is 10x in per-capita incomes, while the developed world differ from each other by a factor of 0.1x - 0.2x in percapita incomes. However, this developed/developing dichotomy is outdated and not really useful.
China underwent an industrial revolutionâmass-producing quantities of raw materials like salt and iron on a scale that wouldnât be seen in Europe until the 18th century. During the Song, Chinaâs âfour great inventionsâ were widely used: The compass, gunpowder, paper-making, and printing. Science, technology and engineering reached new heights (such as ship and bridge building, hydraulic engineering, and architecture).