For the sludge treatment process, the water content of the sludge sample is reduced from 99.0% to 82.0%. Assuming that the solids content of the sludge sample contains 72.0% organic matter with specific gravity 1.0, and 28.0% mineral salts with specific gravity 2.0. Determine the following: a) Specific gravity of the solids content in the sludge sample before treatment b) Specific gravity of the sludge sample before treatment c) Specific gravity of the sludge sample after treatment d) Volume of a kilogram of sludge sample before treatment e) Volume of a kilogram of sludge sample after treatment (2 marks) (2 marks) (2 marks) (2 marks) (2 marks) f) Percentage of volume reduction for a kilogram of sludge sample after treatment (2 marks)