Refer to FIGURE 1.1 showing stages in the development of a mid-latitude cyclone - NSC Geography - Question 1 - 2018 - Paper 1
Question 1
Refer to FIGURE 1.1 showing stages in the development of a mid-latitude cyclone.
1.1.1 Name the front at 60° S, in diagram X, where mid-latitude cyclones develop.
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Worked Solution & Example Answer:Refer to FIGURE 1.1 showing stages in the development of a mid-latitude cyclone - NSC Geography - Question 1 - 2018 - Paper 1
Step 1
1.1.1 Name the front at 60° S, in diagram X, where mid-latitude cyclones develop.
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Answer
The front at 60° S in diagram X is referred to as the Polar front.
Step 2
1.1.2 Name the stage of development of the mid-latitude cyclone at X.
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The stage of development of the mid-latitude cyclone at X is the Wave/Formative stage.
Step 3
1.1.3 Give the lowest air pressure recorded in stage Y.
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The lowest air pressure recorded in stage Y is 1,000 hPa.
Step 4
1.1.4 Which mid-latitude cyclone, Y or Z, is older?
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Answer
Mid-latitude cyclone Z is older.
Step 5
1.1.5 Name the stage of development of the mid-latitude cyclone at Z.
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The stage of development at Z is the Occlusion/Occluded stage.
Step 6
1.1.6 What evidence suggests that the illustrated mid-latitude cyclone is in the Southern Hemisphere?
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In the Southern Hemisphere, the air rotates in a clockwise direction, as indicated in the figure. Additionally, the cold sector is shown facing southwards.
Step 7
1.1.7 What is the term used to describe mid-latitude cyclones that are linked to one another?
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The term used to describe mid-latitude cyclones that are linked together is 'Family of cyclones' or 'Cyclone families'.
Step 8
1.2.1 Rivers that flow all year round are (permanent/periodic) rivers.
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Permanent.
Step 9
1.2.2 (Exotic/Periodic) rivers flow during the rainy season only.
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Periodic.
Step 10
1.2.3 Rivers that only flow after heavy rainfall are known as (episodic/exotic) rivers.
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Episodic.
Step 11
1.2.4 The majority of rivers in South Africa are (periodic/permanent).
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Periodic.
Step 12
1.2.5 In (permanent/episodic) rivers the river bed is always below the water table.
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Episodic.
Step 13
1.2.6 The water table is always below the river bed in (exotic/episodic) rivers.
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Episodic.
Step 14
1.2.7 (Periodic/Exotic) rivers flow all year round because they are fed by tributaries in high rainfall areas.
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Exotic.
Step 15
1.2.8 (Permanent/Periodic) rivers are characteristic of interchanging seasons of high and low rainfall.
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