VPlease refer to the extract below and the 2531 CC Barberton topographic map

Question

and the 2531 CC 2 Barberton orthophoto map when answering the mapwork
questions.
General Information on Baberton
Barberton is the only town in the Umjindi Municipality and it serves a large
rural area. The population is largely involved in agricultural activities.
It was just a simple mining camp when gold was discovered in the mid 1880’s
in the hills above the present town. Sheba mine is at present one of the oldest
and richest working gold mines in the world, having been in production for
more than a century. It is estimated that production will continue for several
decades.
Mining, forestry, agriculture and tourism are the dominant sectors in the local
economy, although the relative importance of mining has declined as the
economic base has diversified. The region is known for its cattle farms, as we
as deciduous fruit and sugar cane production. Game farming is on the
increase.
Barberton normally receives about 672 mm of rain per year. The most rainfall
occurs during summer, with 126 mm in December. Average midday
temperatures for Barberton range from 20.2°C in June to 26.8°C in January.
The region is coldest during June when the mercury drops to 5.7°C on average,
during the night.
Question 3.1: Multiple Choice
Choose the correct answer from the options given below. Simply write the
question number and either A, B, C, or D in your answer sheet. E.g 3.1.6 A
16
3.1.1 What economic activities take place in Barberton?
A. Manufacturing
B. Farming
C. Banking
D. Information technology
3.1.2 Barberton receives rainfall during _______
A. Spring
B. Summer
C. Autumn
D. Winter
3.1.3 The height of the contour line represented by letter A on the orthophoto
map is
A. 810m
B. 820m
C. 830m
D. 840m
3.1.4 1:50 000 is an example of a ________
A. Word scale
B. Line scale
C. Ratio scale
D. None of the above
3.1.5 Refer to block C4 of the topographic map. The height of the trigonometric
beacon found in this block is
A. 18m
B. 18km
C. 1640.4km
D. 1640.4m
(5 x 1) (5)
17
Question 3.2: Mapwork Calculations
3.2.1 Calculate the gradient between spot height 1369 in block E1 and spot
height 1593 in block E2 found on the topographic map. Show all your
working. Use the formula below to assist you.
𝐺𝑟𝑎𝑑𝑖𝑒𝑛𝑡 =
𝑣𝑒𝑟𝑡𝑖𝑐𝑎𝑙 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒
ℎ𝑜𝑟𝑖𝑧𝑜𝑛𝑡𝑎𝑙 𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒
(5)
3.2.2 Determine the true bearing from spot height 1174 in block B3 to
spot height 1266 in block B4 found on the topographic map. (2)
[7]
Question 3.3: Mapwork Interpretation
3.3.1 Refer to the topographic map of Barberton. Explain why there are only
buildings and infrastructure in the north-western part of the map.
(2 x 2) (4)
3.3.2 Give two positive impacts of the Tinie Louw Nature Reserve on the people
and the environment of Barberton. (2 x 2) (4)
3.3.3 Identify the type of river shown in block E1 of the topographic map. Give a
reason for your answer. (1 + 2) (3)
[11]
Question 3.4: GIS
3.4.1 Refer to the R38 in block A2 of the topographic map. Classify this as point,
line or polygon data. (1 x 1) (1)
3.4.2 Give a possible attribute of the R38. (1 x 2) (2)
3.4.3 Explain how a GIS can be used to help determine the location of a
shopping centre. (2 x 2) (4)

Answer 1

Sure! Below are the answers to the questions you provided. Make sure to verify them with the relevant topographic and orthophoto maps, as I do not have access to visual materials.

Question 3.1: Multiple Choice

3.1.1 What economic activities take place in Barberton?
B. Farming

3.1.2 Barberton receives rainfall during _______
B. Summer

3.1.3 The height of the contour line represented by letter A on the orthophoto map is
[Note: This depends on the orthophoto map, but assuming:]
C. 830m

3.1.4 1:50 000 is an example of a ________
C. Ratio scale

3.1.5 Refer to block C4 of the topographic map. The height of the trigonometric beacon found in this block is
D. 1640.4m

Question 3.2: Mapwork Calculations

3.2.1 Calculate the gradient between spot height 1369 in block E1 and spot height 1593 in block E2.

Formula: \[ \text{Gradient} = \frac{\text{vertical distance}}{\text{horizontal distance}} \]

Calculations:

• Vertical Distance = 1593 - 1369 = 224m
• Horizontal Distance = [Use the scale on the map or the straight-line distance between the two points, let’s say it’s X km. Convert it to m if necessary.]

Assuming the horizontal distance is found to be Y m:
\[ \text{Gradient} = \frac{224}{Y} \]

3.2.2 Determine the true bearing from spot height 1174 in block B3 to spot height 1266 in block B4 found on the topographic map.
[Calculate using a protractor on the map, though a potential response might be:]
[Answer depends on map measurements. Provide the calculated bearing, e.g., 75°]

Question 3.3: Mapwork Interpretation

3.3.1 Explain why there are only buildings and infrastructure in the north-western part of the map.
The north-western part of the map likely has more favorable terrain for construction (e.g., flat land, less steep areas) and availability of resources such as water or proximity to transportation routes.

3.3.2 Give two positive impacts of the Tinie Louw Nature Reserve on the people and the environment of Barberton.

• Tourism opportunities that boost the local economy through visitors coming to enjoy nature.
• Conservation of local biodiversity which benefits the environment, including flora and fauna.

3.3.3 Identify the type of river shown in block E1 of the topographic map. Give a reason for your answer.
It is likely a seasonal river (ephemeral or intermittent). Reason: This could be inferred from the contours indicating a lack of consistent water flow and the surrounding vegetation type.

Question 3.4: GIS

3.4.1 Refer to the R38 in block A2 of the topographic map. Classify this as point, line or polygon data.
Line data

3.4.2 Give a possible attribute of the R38.
Road type (e.g., gravel road, tarred road)

3.4.3 Explain how a GIS can be used to help determine the location of a shopping centre.

• GIS can analyze demographic data such as population density and income level to identify high demand areas for shopping.
• GIS can also map existing infrastructure such as road networks and public transport systems to ensure accessibility for potential customers.

Feel free to modify the answers according to your specific requirements and calculations based on the maps!