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Refer to both topographic map and the orthophoto map when answering the questions below - NSC Geography - Question 3 - 2016 - Paper 2

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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

3.1 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

One reason evident on the topographic map is the presence of widely spaced contour lines, indicating a gentle slope. This gentle gradient allows for easier construction and maintenance of a straight railway line.

Step 2

3.2 Generally, Ladysmith receives limited rainfall. Give TWO reasons evident on the map to support the statement.

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First, there are plenty of dams shown on the map, suggesting that water resources are managed carefully due to limited rainfall. Second, cultivated lands along the river indicate that agricultural practices are adapted to the low rainfall environment.

Step 3

3.3 Suggest ONE piece of topographic map evidence that indicates the discharge of the Kliprivier fluctuates/changes during the certain times of the year.

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The presence of a non-perennial watercourse along the river indicates that the discharge of the Kliprivier changes, suggesting periods of flow and dry conditions throughout the year.

Step 4

3.4 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 manage the threat of veld fires by maintaining firebreaks, which are indicated on the map. These firebreaks create barriers that help prevent the spread of fires into residential or cultivated areas.

Step 5

3.5 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

3.5.1 Identify the drainage pattern of the drainage basin labelled V.

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The drainage pattern of basin V is dendritic, resembling the branches of a tree as streams and rivers flow into larger tributaries.

Step 7

3.5.2 In which general direction is the Bell's Spruitriver, in blocks A1 and A2 flowing?

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The Bell's Spruit is flowing in a south-easterly direction.

Step 8

3.5.3 Give TWO reasons, evident on the topographic map to support your answer to QUESTION 3.5.2.

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Firstly, the tributaries of the Bell's river join at acute angles to the main flow, indicating a south-east direction. Secondly, the contours of the land slopes downwards towards the southeast, directing water flow in that direction.

Step 9

3.5.4 Determine the stream order of the Bell's Spruit at point W, in block A2 on the topographic map.

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The stream order of the Bell's Spruit at point W is classified as a 3rd order stream.

Step 10

3.6 Refer to Hillside in block E2/3 on the topographic map and also on the orthophoto map.

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Step 11

3.6.1 Identify the street pattern at Hillside?

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The street pattern at Hillside is grid iron, characterized by intersecting streets laid out in a grid format.

Step 12

3.6.2 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 land is relatively flat, which is conducive to the grid iron street layout, facilitating efficient movement and construction.

Step 13

3.6.3 State ONE advantage and ONE disadvantage of the street pattern (answer to QUESTION 3.6.1).

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Advantage: It is regarded as easy to extend, allowing for future development. Disadvantage: The numerous intersections can lead to traffic congestion and may increase risks of accidents.

Step 14

3.7 Soil erosion is occurring extensively in block D5 on the topographic map. Suggest TWO strategies that may be implemented to minimise this problem.

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First, afforestation programs can be initiated, involving the planting of trees to stabilize the soil. Second, building retention walls can help prevent soil runoff and protect vulnerable areas from erosion.

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