Refer to both topographic map and the orthophoto map when answering the questions below - NSC Geography - Question 3 - 2016 - Paper 2
Question 3
Refer to both topographic map and the orthophoto map when answering the questions below.
3.1 Suggest ONE reason on the topographic map that influenced the engineers... show full transcript
Worked Solution & Example Answer:Refer to both topographic map and the orthophoto map when answering the questions below - NSC Geography - Question 3 - 2016 - Paper 2
Step 1
Suggest ONE reason on the topographic map that influenced the engineers to construct the relatively straight course of the railway line in blocks F4 and F5.
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Answer
The relatively straight course of the railway line in blocks F4 and F5 can be attributed to the presence of gentle slopes evident on the topographic map. This feature would facilitate easier construction and maintenance of the railway.
Step 2
Generally, Ladysmith receives limited rainfall. Give TWO reasons evident on the map to support the statement.
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Answer
The map indicates plenty of dams, which suggests that water resources are managed through storage, hinting at limited natural rainfall.
The absence of cultivated lands along rivers may indicate insufficient precipitation to support agriculture, further supporting the statement of limited rainfall in Ladysmith.
Step 3
Suggest ONE piece of topographic map evidence that indicates that the discharge of the Klipriver fluctuates/changes during the certain times of the year.
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One piece of evidence is the presence of a non-perennial watercourse along the river, suggesting that the Klipriver experiences fluctuations in water discharge based on seasonal changes.
Step 4
In the South Western part of the mapped area, there is evidence of the frequency of veld fires. How do Ladysmith residents deal with the threat of veld fires? Use ONE map evidence to support your answer.
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Residents deal with the threat of veld fires through the establishment of firebreaks, as indicated on the map. These barriers help to control and prevent the spread of fires within the vicinity.
Step 5
Locate the drainage basin labelled V in block A1 and A2 on the topographic map and then answer the questions below.
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Step 6
Identify the drainage pattern of the drainage basin labelled V.
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Answer
The drainage pattern labelled V exhibits a dendritic pattern, where tributaries join main streams resembling the branches of a tree.
Step 7
In which general direction is the Bell's Spruit in blocks A1 and A2 flowing?
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The Bell's Spruit is flowing in a south-easterly direction.
Step 8
Give TWO reasons, evident on the topographic map to support your answer to QUESTION 3.5.2.
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The tributaries of the Bell's river join at acute angles upstream, indicating a south-easterly flow direction.
The map shows high values of spot heights found in the NW, which suggests that water flows from higher elevations to lower ones toward the southeast.
Step 9
Determine the stream order of the Bell's Spruit at point W, in block A2 on the topographic map.
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The Bell's Spruit at point W is classified as a 3rd order stream, reflecting its position within the broader hierarchical system of streams.
Step 10
Identify the street pattern at Hillside?
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The street pattern at Hillside is characterized as a grid iron pattern, facilitating organized and straightforward navigability.
Step 11
Suggest ONE physical factor evident on both topographic and orthophoto maps that influenced the choice of street pattern in QUESTION 3.6.1 above.
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The primary physical factor influencing the street layout in Hillside is the area being relatively flat, allowing for the ease of construction of a grid pattern.
Step 12
State ONE advantage and ONE disadvantage of the street pattern (answer to QUESTION 3.6.1).
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Advantage: The grid iron pattern is easy to extend, facilitating future urban development.
Disadvantage: The street layout can lead to traffic congestion due to its many intersections.
Step 13
Suggest TWO strategies that may be implemented to minimise this problem.
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Implement afforestation programs by planting trees which help prevent soil erosion.
Raise awareness campaigns to educate local farmers on environmentally sustainable practices to preserve soil integrity.
