Answer :
A A positive feedback loop involving the migration of goods and services away from an urban center
Explanation:
Urban blight or urban decay(a sociological process) that occurs when a city or part of it falls into decrepitude and as such could encourage migration from there
It results from different causes or combinations of inter-related socio-economic conditions such as the city's urban planning decisions tight rent control or general economic problems ,the poverty of the local populace etc.
Your answer would be D.
sociobiology studies human interactions with his/her society or environment over history
The answer would be : The social security Act.
The most important development in providing secure retirement for americans was the Social security Act. The social Security Act provide General Welfare by creating various systems for old-age benefits
