neco model questions vol1 2024 geography | Practical

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Question 1 View Details
A 1:50,000 topographic map of a local area is supplied. The map shows the following grid positions (measured in centimetres from the origin of the map sheet): | Point | Easting (cm) | Northing (cm) | |-------|--------------|---------------| | A | 12.0 | 8.0 | | B | 18.5 | 14.0 | | C | 5.0 | 20.0 | | D | 15.0 | 22.0 | The map legend indicates that a primary school is represented by a small black square with the letter “P”. The lake shown on the map occupies nine full 1 cm × 1 cm squares and four half‑squares (each 0.5 cm²).
Question Parts
(a)
Determine the bearing from point A to point B to the nearest degree.
(b)
Calculate the straight‑line ground distance between points C and D.
(c)
State the symbol used on the map to represent a primary school.
(d)
Estimate the actual area of the lake in square kilometres.
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Question 2 View Details
A map of a river basin is drawn at a scale of 1 cm : 2 km. On the map the river meanders from point X to point Y. Using a piece of string, a student measures the length of the river on the map as 13.6 cm. The straight‑line distance between X and Y on the map is measured as 7.2 cm.
Question Parts
(a)
Calculate the actual (ground) length of the river.
(b)
Determine the sinuosity of the river (ratio of actual length to straight‑line distance) to two decimal places.
(c)
If a reduced‑scale map of 1 cm : 100 km is produced, what will be the length of the river on the new map (in centimetres, to one decimal place)?
(d)
Identify two possible sources of error in measuring the river length on the map and suggest one method to minimise each error.
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Question 3 View Details
A topographic map of Nigeria is drawn at a scale of 1 cm : 20 km. The latitude and longitude of two towns are given as follows: Town A: 7° 30' N, 5° 00' E Town B: 8° 15' N, 5° 45' E
Question Parts
(a)
Calculate the north‑south distance between the towns in kilometres. (Use 1° latitude = 111 km).
(b)
Calculate the east‑west distance between the towns in kilometres. (Use the mean latitude of the two towns to determine the length of 1° longitude).
(c)
Assuming the straight line joining the towns is the hypotenuse of a right‑angled triangle formed by the north‑south and east‑west distances, compute the actual ground distance between the towns (to the nearest kilometre).
(d)
Using the map scale, determine the distance between the towns on the map in centimetres. Also state the approximate bearing of Town B from Town A (e.g., NNE, ENE, NE).
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Question 4 View Details
A weather station recorded the following data for four consecutive days:
Question Parts
(a)
Calculate the mean daily temperature for each day and the overall mean temperature for the four‑day period.
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