1. How has the size and location of big cities changes since the year 1900? 2. Describe the major problems in today's large cities and the cause of these problems. 3. What can be done to help solve these problems? 4. You may never live in a big city, but we must all find ways to lower our environmental impact. What can the average citizen do with a minimum of cost and inconvienence to become more environmentally friendly?
1 answer
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS362&q=urban+problems