What problems did Chinese people face?

How does cigarette smoke affect the ozone layer? How does science affect air pollution? How did child labor improve in coal mines? Did Goldie Hawn have an lesbian affair? What are the pros and con of an environment? What are the effects of throwing garbage anywhere? Did rich powerful men like Rockefeller and Carnegie have an obligation to use their influence to help the rest of the American Society? Was troy donahue circumcised.? What celebrity did something good for society? Is being a model minority a burden? What resources are fossil fuels? What is the opposite of polluted? Is made mostly in the stratosphere? What is nonvertical line is the ratio of the vertical change to the horizontal change between any two points on a line? Was george meade a slave owner? How many days does it take before compost can be harvested? Which cabinet officer is responsible for strikes? Is extracting metal from ores bad for the environment? What are fragile environments? Which were social evils faced by women in 18th century?