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In your answer booklet, draw an outline of the mapped area and insert: the secondary road; the trigonometrical station; Mayo Jarandi settlement; River Juji and indicate its direction of flow within the mapped area.
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Step-by-step solution
9 stepsPart a
On the map extract, draw a linear scale bar for 1:50 000 (e.g., km) using a red pen. Include a key showing symbols such as for trig beacons, solid blue line for perennial rivers, dashed line for seasonal rivers.
Part b(i)
Secondary roads: Drawn as broken lines (e.g., from grid square 20-30 to 25-35) and named (e.g., "Unsurfaced road", "Secondary road").
On the outline map:
Part b(ii)
Trigonometrical beacons: Marked as at positions (e.g., 1855, 2248) and named (e.g., "Trig 1", "Trig 2").
Part b(iii)
River Jorani and tributaries: Drawn as meandering blue lines with arrow showing flow direction.
Part c· 3 steps
Three reasons for the direction of flow of River Jorani:
Gradient/relief - The river flows from high altitude areas (contours 1500m+) in the north-west to lower areas (800m) in the south-east as shown by V-shaped contours.
Underlying rock structure - Fault lines and strike direction influence flow along lines of weakness.
Regional slope - Overall south-easterly tilt of the area.
Part d· 3 steps
Three drainage characteristics:
Dendritic drainage pattern - Tributaries join main river at acute angles resembling tree branches (grid sq.
15-25).
Perennial river - River Jorani shown by solid blue line with consistent width indicating permanent flow.
Meandering course - River has loops and bends in flat valley bottom (grid sq.
28-32).
Part e· 3 steps
Account for limited settlement:
Steep slopes - High relief with close contours discourages settlement due to erosion risk (e.g., hill at 2000m, grid 10-20).
Swampy areas - Marshes along river (hachured areas, grid 30-35) prone to flooding.
Thick forest/vegetation - Forest reserve limits clearance for farming/housing.
Part f
Describe relief using evidence:
The area has varied relief. Steep slopes on hill (grid 12-18, contours from 1200m to 2100m, close spacing). Gentle slopes in valley (wide contour spacing 1000-1200m, grid 25-35). Flat plateau top (grid 05-10, 1600m contour).
Part g
Rainfall and temperature distribution table (typical for stations):
\begin{tabular}{|c|c|c|}
\hline
Station & Annual Rainfall (mm) & Mean Temp (C) \
\hline
U & 1200 & 22 \
V & 1000 & 24 \
W & 900 & 25 \
X & 800 & 26 \
\hline
\end{tabular}
Explanation: Rainfall decreases eastwards due to rain shadow; temperature increases with decreasing altitude.
**End of solution. Drawings as per map extract. Total: 25 marks.}
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