Scenario best shows how to deal with aggression resulting from frustration

Which of the following entities ensure that national security policies are carried out? check all that apply.

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.

Why does the blending of many different diciplines present both challenges and opportunities to enviromental scientist?