Cause＆Effect Reading pg 67 k

Describe life in your city ten years from now if twice as many people live there.

I'm from China. China is most population of the country. I live in DongGuan of China. DongGuan is a small city in my country. Three years ago, there were about 1 million people life there, because there many factories in my city. But today there were only seven hundred thousand people live in my city. Because there were lots of factories move out my city, which owing to the environmental pollution. So there were many worker also leaved there. I believe there will be more people leave my city after ten years. I think the population will not increase in my country, because we can only have a child for every family. So I think this is impossible to more people left in my city.