task two- sao paulo

1. what is your city's megacity ranking, alpha, beta, gamma.
(how many mega city characteristics dose it have?)

2. what urban functions dose your city have?
( minimum 2)

3.what urban sustainability programs or issues does your city have?

4.  what are they doing about the sewage problem?
 
5. what are the push and pull factors/ the reasons why someone would want to leave or stay in their country/city.