SECTION A MAP WORK. This question constitutes 33.3% of the marks in the paper and 21.5% of the marks for the whole subject. You are advised to spend about one hour on this question.

A six-figure grid reference provides a precise location for a feature within a 100-meter square on a map.

• First, locate the easting grid line to the immediate west of the feature and read its two-digit number. Then, mentally divide the 1 km square to the east into ten equal parts and estimate the third digit (0-9) for the feature's position within that square.
• Next, locate the northing grid line to the immediate south of the feature and read its two-digit number. Similarly, mentally divide the 1 km square to the north into ten equal parts and estimate the sixth digit (0-9) for the feature's position within that square.
• Combine these six digits, with the three easting digits followed by the three northing digits, to pinpoint the feature's exact location. For example, a reference like 185943 indicates a position 500 meters east of easting 18 and 300 meters north of northing 94.

• 1. Port Activities/Trade: Limbe is a coastal town with a natural deep-water harbor, making it a significant port for maritime trade, shipping, and fishing.
• 2. Oil Refining: The Société Nationale de Raffinage (SONARA), Cameroon's national oil refinery, is situated in Limbe, indicating a major industrial activity involving the processing of crude oil.
• 3. Agriculture/Plantations: The fertile volcanic soils surrounding Limbe support extensive agricultural plantations, particularly for crops like palm oil, rubber, and cocoa, contributing significantly to the local economy.