Why does fossil fuel use in the united states make the u. s. vulnerable to the political wishes of foreign countries?
a. the us is a net exporter of fossil fuels.
b. fossil fuels lead to global climate change.
c. the us imports much of its petroleum from foreign countries which set the prices.
d. all of the above.

The best and most correct answer among the choices provided by the question is the fourth choice which is all of the above.

The use of fossil fuels makes the US vulnerable because it is an exporter of the fuel, and also it imports its petroleum from foreign countries most especially the Middle East.
I hope my answer has come to your help. God bless and have a nice day ahead!

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