waec model questions vol1 2021 geography | Practical

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Question 1 View Details
A topographic map of a small town is described as follows: the map scale is 1 cm : 500 m (i.e., 1 cm represents 0.5 km). The origin of the grid is at the south‑west corner of the map. Village A is located at grid coordinates (2.3 cm, 4.6 cm) and Village B at (5.1 cm, 7.8 cm). A road runs from Village A to a point C that is 3.0 cm east and 2.0 cm north of A. The map also shows a river flowing roughly north‑south between the two villages.
Question Parts
(a)
Calculate the actual straight‑line distance between Village A and Village B in kilometres, correct to two decimal places.
(b)
Determine the bearing of Village B from Village A, expressed as a three‑digit bearing to the nearest degree.
(c)
A surveyor walks the road from A to C at a speed of 1.5 km per hour. Estimate the time required to walk the whole road, giving your answer in hours and minutes.
(d)
State one possible source of error when distances are estimated from the map scale.
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Question 2 View Details
A scale drawing of a rectangular garden is given. In the drawing the length of the garden is 6.5 cm and the width is 4.0 cm. The scale of the drawing is 1 cm : 2.5 m.
Question Parts
(a)
Find the actual length and width of the garden in metres.
(b)
Calculate the actual area of the garden in square metres, correct to one decimal place.
(c)
If the garden is to be fenced, determine the total length of fence required, allowing a 5 % extra for gates and slack. Give the answer in metres, rounded to one decimal place.
(d)
Grass seed costs ₦250 per square metre. Estimate the total cost to seed the whole garden, rounding to the nearest naira.
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Question 3 View Details
A topographic map of a coastal region shows the following coordinates for two towns: - Town A: 6°30' N, 7°45' E - Town B: 6°45' N, 8°10' E Using the approximation that 1° of latitude equals 111 km and 1° of longitude equals 111 km × cos (mean latitude), answer the questions below.
Question Parts
(a)
Calculate the straight‑line distance between Town A and Town B in kilometres (give your answer to one decimal place).
(b)
Determine the initial bearing from Town A to Town B (expressed as degrees clockwise from true north, to the nearest degree).
(c)
If a straight road were constructed between the two towns and a vehicle travels at an average speed of 60 km h⁻¹, estimate the travel time in minutes (round to the nearest minute).
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Question 4 View Details
The table below shows the weather observations recorded at a meteorological station over a seven‑day period. | Day | Max Temp (°C) | Min Temp (°C) | Rainfall (mm) | Wind Direction (°) | Wind Speed (km/h) | |-----|---------------|---------------|---------------|--------------------|-------------------| | 1 | 32 | 22 | 5 | 70 | 12 | | 2 | 34 | 24 | 0 | 110 | 8 | | 3 | 31 | 21 | 12 | 190 | 15 | | 4 | 29 | 20 | 0 | 250 | 10 | | 5 | 33 | 23 | 8 | 70 | 14 | | 6 | 35 | 25 | 0 | 340 | 9 | | 7 | 30 | 22 | 3 | 70 | 11 | Using the data, answer the following questions.
Question Parts
(a)
Calculate the mean daily temperature for each day (average of maximum and minimum temperatures).
(b)
Identify the day with the highest diurnal temperature range and state that range in degrees Celsius.
(c)
Determine the prevailing wind quadrant (N, E, S, W) for the week and calculate the average wind speed for winds blowing from that quadrant (round to two decimal places).
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