Write a geographical account of mining in Nigeria under the following headings:

(a) four mineral deposits;
(b) one town that is important for the mining of each of the minerals in 6(a);
(c) Three benefits of mining in Nigeria;
(d) Three negative effects of mining on the environment of mining areas.

The Table X above shows the number of farm units in three villages of Oju District in the year 2010. Use the data in Table X to answer the questions that follow. 

(a) Using the map of Oju District provided on page 3 and radius of 1 cm to represent 3 farm units, Construct proportional circles to represent the data. (b) State two disadvantages of proportional circles.

Describe chemically formed sedimentary rocks under the following headings: (a) mode of formation; (b) three examples; (c) four importance.

(a) What is a lake? (b) Describe the formation of lakes by wind erosion. (c) identify three benefits of lakes to man.

(a) Highlight four characteristics each of the following: (i) Time Zone (ii) International Dateline.
(b) lf two towns A and B are located on different time zones and the time ini town Ais 9.00am while the time in town B is 6.00pm the same day, calculate the longitude of town B if the longitude of town A is 30° W.