Which of the Following Is Not Responsible for the Urban

Multiple Choice

Which of the following is not responsible for the urban heating effect?

A) heat generated by homes,vehicles,and factories
B) increase in human-made materials that conduct more energy than natural surfaces
C) increased albedo of urban environments relative to that of natural landscapes
D) the concentration of people,machines and heat generating devices adds more heat to the environment
E) increased air pollution that absorbs and reradiates heat to surface