$14.$ Explain the difference between the underlying hierarchy of waste management strategies in the NWMS $1999$ and NWMS $2010.(6)$

$15.$ Name the $6$ levels in the mixed legal system followed in South Africa: $(12)$

$16.$ An agreement is entered into between South Africa and a company A in Europe to dump toxic waste in a desert area in the Northern Cape in return for decreased shipping cost and duty on the import of a critical product from the same company.

$($a$)$ State which of the Principles of Integrated Environmental Management are being violated by the South African government in entering and agreeing to the terms of the above agreement. $(16)$

$($b$)$ State corrective measures that could be undertaken with reference to NEMA, NEMWA and any supporting legislature that could be undertaken to mitigate the above scenario without risking losing a critical import product? $(8)$