Highlight five problems of development of the Cross River Basin.
(i) Pour transportation network due to many rivers and swamps
(ii) Soil erosion due to heavy rainfall leading to gully erosion
(iii) Occasional flooding due to heavy rainfall
(iv) Water and land pollution due to mining of petroleum thereby affecting agricultural practice
(v) Death of aquatic animal resulting from pollution
(vi) Non-exploration of potential cash crops.
(vii) Sparse population in some places
(viii) High salinity of mangrove swamp soils
(b) In what five ways can those problems be solved?
(i) Improvement in transport network
(ii) Construction of bridge and fly-overs across swamp and water logged zones
(iii) Soil erosion control measures to be improved
(iv) Flood control measures should be adopted like building sizeable culverts
(v) Proper channelization of flood water
(vi) Legislation on oil companies for proper disposal of effluents
(vii) Encouragement of large scale cultivation of root crops like cassava as export / cash crops
(viii) Encouragement of immigrants into sparsely populated areas