Aconservative judge leaving the supreme court will always be replaced with:

I believe the answer is: whomever the president appoints and congress confirms

The president of the United States have the full right to appoint pesonal choice to fill several crucial positions in the Government while the senate only has the power to advice the President.
Several positions that included in this list are: the Vice president, the Supreme Court Justice, The Speaker of the house, The secretary of Defense, etc.

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada