Compare irrigation agriculture in the Nile Basin with that in the Niger Basin under the following headings:

(a) The need for irrigation

(b) Methods used

(c) Areas covered

(d) Crops cultivated 
 

(a) On an outline map of Africa, locate and name;
(i) two areas (outside Nigeria) important for each of copper, go and iron ore
(ii) one important town in each area
(iii) one port of export for each mineral

(b) In what four ways is copper important to any one of the areas shown on your map? 
 

(a) Explain any four ways in which lines of latitude differ from lines of longitudes

(b) If the time at town A (long 75°W) is 5.00p.m on Friday, what will be the time and day at town B(long 120°E)? Show your workings clearly. 
 

 With the aid of suitable diagrams, describe the characteristics and mode of formation of any two of the following

(a) Ox-bow lake

(b) Zeugen

(c) Block mountain 
 

(a) Draw a diagram of the relief of the ocean floor showing the following
(i) Continental shelf
(ii) Continental slope
(iii) Ocean deep

(b) Describe the main characteristics of any two of the features shown

(c) Highlight the economic,-c importance of continental shelves to man