ZIMSEC A Level Geography Paper 3 Past Papers

Topics in this paper

Statistics: measurement scales, Poisson, chi-square, spatial autocorrelationGIS: georeferencing, digitising and measurementMitigation and adaptation: veldfiresRemote sensing and digital image processingResearch techniques: isochrones and samplingSettlement and Urban Geography Fluvial Geomorphology

Explained questions

Classify the data 'male, female' into the appropriate measurement scale.
Classify the data 'primary, secondary, tertiary' into the appropriate measurement scale.
Classify the data '20 degrees C, 23 degrees C, 32 degrees C' into the appropriate measurement scale.
At a private clinic patients arrive at an average rate of 5 per hour, and arrivals follow a Poisson distribution. Calculate the probability that exactly 2 patients arrive in a given hour, correct to 4 decimal places.
At a private clinic patients arrive at an average rate of 5 per hour, following a Poisson distribution. Calculate the probability that at most 3 patients arrive in a given hour, correct to 4 decimal places.
Patients arrive at a clinic at an average rate of 5 per hour, following a Poisson distribution. Calculate the probability that not more than 1 patient arrives in a given two-hour interval, correct to 5 decimal places.
A chi-square test of independence is performed on a contingency table with 2 rows (males, females) and 3 columns (age 20-30, 31-40, 41-50). State the number of degrees of freedom.
A chi-square test on cholera cases by age and sex at Musiso Mission hospital gives a test statistic of about 0.08 with 2 degrees of freedom, against a 5 per cent critical value of 5.991. What is the correct conclusion?
Give one recognised index of spatial autocorrelation used in geographical analysis.
Why does spatial autocorrelation matter when a geographer applies classical statistical tests to spatial data?
The Masembura 1:50 000 extract shows steep sided hill masses rising to trigonometrical stations at 1315.8 m and 1317.2 m, standing well above a gently undulating plateau surface cut across the same granite. What is the most likely explanation for these hills?
The Masembura extract shows streams rising in wide, flat, marshy headwater depressions on the plateau surface, which are seasonally waterlogged and lie where the water table intersects a low gradient surface. Give the local Zimbabwean name for this landform.
The drainage on the Masembura extract forms a branching, tree-like pattern with tributaries joining at acute angles across the whole sheet. Name this pattern and state what it indicates about the underlying rock.
The Masembura extract shows individual homestead symbols scattered singly across Masembura Communal Land and Msana Communal Land, rather than grouped into villages. What is this settlement type called, and what best explains it?
In QGIS, the operation of assigning real world coordinates to a scanned map image by matching identified points on the image to known ground coordinates is required before any measurement can be taken from it. Name this operation.
Six ground control points spread across the Esigodini sheet, from easting 699000 to 706000 and northing 7751000 to 7756000, are entered before georeferencing. Why are several well spread points used rather than two close together?
Drainage density is calculated from the total length of all streams within a grid square and the area of that square. On a 1:50 000 sheet a 1 km grid square has an area of 1 square kilometre. If the total stream length measured within one such square is 3.6 km, calculate the drainage density and give its units.
The Esigodini sheet shows shallow open valleys, few perennial channels and long stretches of higher ground with almost no channels at all, giving a low to moderate drainage density. What best explains this?
Fig. 5.1 shows temperature in City X as roughly concentric closed isotherms falling outward from a hot central core, with the isotherms bending outward along the line of the river. What is this pattern, and why is the core hottest?
On Fig. 5.1 the isotherms bend outward where the river crosses the city, marking a tongue of cooler air along the channel. Why is the river corridor cooler than the built up area around it?
Define rainfall variability as the term is used in the study of climate.
You are asked to show Zimbabwe's mean annual rainfall variations from normal for 1910 to 2000 on one diagram. Which technique is appropriate, and how is it constructed?
Which is a genuine disadvantage of using a departure from the mean bar graph to show ninety years of rainfall?

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A Level Geography Paper 3 Past Papers, 2023 to 2023

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