A. Particulates are associated with IV. Electrostatic precipitation, a method used to remove particulates from air.
B. Scrubbers are used to remove I. Sulphur dioxide from industrial emissions.
C. Incinerators are used to dispose of V. Hospital wastes.
D. Aging of lake is related to II. Eutrophication, a process that enriches water bodies with nutrients.
Final Answer:
A-IV, B-I, C-V, D-II