China is close in size to the continental U.S. but has just one time zone - no daylight saving time! Mind Blowing Facts about China June 3, 2014 About 8 billion pairs of socks are made annually in China's Datang District, also known as sock city. Over 30 million people in China live in caves. Smoking kills 1 million Chinese every year. Please don't smoke! In two years, China produced more cement than the U.S. did in the last 100 years! Twenty million trees are cut every year to meet Chinese demand for chopsticks.