a. Solid waste disposal by landfill method can be done in open damp and in what is known as sanitary landfill from a scientific/technical view point, what makes the two disposal options different?

b. Correct disposal of toxic waste is a problem disposal is expensive, it takes up space and it is never totally safe thus nobody wants toxic wastes dumped in the back yard from this argument show a detail of how land use economy and environmental aspect must be considered for the selection of a landfill sites

c. Special wastes are often dangerous and require special handling, management as well as disposal. Mention any two special wastes describing methods that may be used to dispose them

d. Collection and disposal of solid waste has been a critical problem in major cities as well as in small urban centers. You have personally visited several places in Dar Es Salaam and have witnessed the situation of municipal solid wastes management. What can you recommend to make the management of municipal solid wastes in Dar es salaam cost effective and environmental benign? Does the society have any important role in making this successful