If you walk 10 meters from your house to the mailbox and then directly back to your house, your displacement is

a. 0 m
b. 10 m
c. 20 m
d. you need a more specific direction to figure this out.

A. describe the model of urban structure most often observed in mega-cities in developing countries. explain how this model differs from common urban structures in north america. b. describe at least two factors leading to the growth of mega-cities in developing or least-developed countries. c. identify and explain two factors that led to the formation of squatter settlements in mega-cities in developing countries.