How much landfill space $($volume$)$ does Apocatequil county require for $20$ years of operation $?$ you may assume that $140000$ persons are being served by this landfill and that each person generate $2\mathrm{.}0kg/$day of waste. the density of the uncompacted waste is $106$ kg$/$m$^3$and a compaction ratio of $4\mathrm{.}2$ can be used $.$ the ration of cover to compacted fill is $1\mathrm{.}70?$