neco model questions vol1 2017 geography | Practical

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Question 1 View Details
A simplified topographic map of a hilly area is provided. The map uses a contour interval of 20 m and a scale of 1 cm : 250 m. The map grid is numbered in centimetres. Point A is at the intersection of grid lines (2 cm E, 4 cm N). Point B is at (7 cm E, 1 cm N). Point A lies on the 120 m contour line and the line AB crosses the 140 m, 160 m and 180 m contour lines before reaching point B, which lies on the 200 m contour line.
Question Parts
(a)
Determine the bearing of the line from A to B, expressed to the nearest degree.
(b)
Calculate the actual ground distance between A and B in metres.
(c)
Estimate the average gradient (slope) between A and B as a percentage.
(d)
State two possible sources of error that could affect the gradient calculated in part (c).
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Question 2 View Details
A map of a coastal region is drawn at a representative fraction of 1 : 100 000. Using a ruler, the straight‑line distance between Town X and Town Y is measured as 6.4 cm. The map also shows a rectangular lagoon whose length on the map is 3.2 cm and width is 1.8 cm. A scale bar on the map indicates that 2 cm represents 2 km.
Question Parts
(a)
Calculate the actual ground distance between Town X and Town Y in kilometres.
(b)
If a vehicle travels from X to Y at an average speed of 48 km h⁻¹, determine the travel time in hours and minutes.
(c)
Calculate the actual area of the lagoon in square kilometres.
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Question 3 View Details
The map of Nigeria shows the following coordinates for two major cities: - Lagos: 6°30' N, 3°22' E - Kano: 12°00' N, 8°30' E Using the fact that 1° of latitude equals 111 km and that the length of 1° of longitude equals 111 km × cos θ (θ = mean latitude), answer the questions below.
Question Parts
(a)
State the numerical difference in latitude and in longitude between Lagos and Kano (express the answer in degrees and minutes).
(b)
Calculate the approximate north‑south distance between the two cities.
(c)
Calculate the approximate east‑west distance between the two cities, using the mean latitude of the two locations.
(d)
Using the north‑south and east‑west distances obtained above, determine the straight‑line distance between Lagos and Kano (assume a right‑angled triangle).
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Question 4 View Details
Weather observations recorded at three stations on the same day are shown in the table below. | Station | Latitude (°N) | Longitude (°E) | Temperature (°C) | Pressure (hPa) | Wind direction | |---------|---------------|----------------|------------------|----------------|----------------| | A (Abuja) | 9°04' | 7°29' | 30 | 1008 | ENE | | B (Kaduna) | 10°31' | 7°26' | 28 | 1002 | N | | C (Jos) | 9°55' | 8°53' | 22 | 1005 | SE | Assume 1° latitude = 111 km and 1° longitude = 111 km × cos θ, where θ is the mean latitude of the two stations considered. Answer the following questions:
Question Parts
(a)
Calculate the pressure gradient magnitude between stations A and B (express the result in hPa km⁻¹). Indicate the direction of the gradient (from high to low pressure).
(b)
Based on the temperature and pressure pattern shown, identify the type of front that is likely moving between stations A and B.
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