1. China
... Shanghai, Hong Kong, and Tianjin. Mega cities are cities with populations over eight million. It's expected that by the year 2015 the population of China will increase by fifty percent. Shanghai is China's largest city. There are about 2,118 people per square kilometer living in Shanghai. In 1995 Shanghai had a population of 13.58 million people. It is expected that its ... City dwellers often grow vegetables to supplement their diet. They water these gardens with sewage and use fertilizer and pesticides. The residue from these treatments can return to the drinking water supply. Small ani...
- Word Count: 641
- Approx Pages: 3
- Grade Level: High School