(a) Four factors which limit the rate of development in the Southern Coastlands of Nigeria are:
(i) Swampy terrain of the area. The coastland is swampy due to high rainfall and nearness to the coast hence poor development of the area
(ii) Problem of erosion which has resulted in severe land loss in the area. This also makes fishing difficult.
(iii) The invasion of canals, creeks and lagoons by water hyacinth seriously limits the rate of development of the area as it makes transportation and fishing very difficult.
(iv) Exploration and exploitation of crude oil resulting in oil spillage, this also affects the rate of development of the area.
(b) Four ways in which the development of the region can be enhanced include:
(i) The establishment of River Basin Development Authorities to bring some infrastructural facilities to the region
(ii) The establishment of the Nigerian Institute for Oceanography and Marine Research is useful to collect data to ensure large fishing concerns to the area in order to increase its infrastructural development and economic prospect.
(iii) Construction of modern highways or flyovers to link the port towns and cities to reduce inaccessibility
(iv) Petroleum prospecting companies should allocate a reasonable percentage of their earnings to the development of the area.