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NECO GCE 2024 GEOGRAPHY OBJECTIVE
01-10: CCDABEACBE
11-20: BCDBAACCDE
21-30: DEEBBCABAE
31-40: AABCCCACBC
41-50: BDACBEEDDC
51-60: BAABBCCEAA
2024 NECO GCE GEOGRAPHY ANSWERS
(2a)
To calculate the time difference:
Longitude difference = 93°E – (-17°W) = 93° + 17° = 110°
Each 15° of longitude corresponds to 1 hour. Therefore, 110° ÷ 15° = 7 hours 20 minutes.
Since Town A is east of Town Y, add the time difference to 9:00 PM:
9:00 PM + 7 hours 20 minutes = 4:20 AM (the next day).
The time in Town A is 4:20 AM.
(2b)
(i) The sun is a massive ball of hot plasma primarily composed of hydrogen and helium.
(ii) It generates energy through nuclear fusion, converting hydrogen into helium in its core.
(iii) The sun has a surface temperature of about 5,500°C and a core temperature exceeding 15 million°C.
(iv) It is the primary source of light and heat energy for Earth and the entire solar system.
(v) The sun rotates on its axis, taking about 25 days at its equator and longer near its poles.
(2c)
{REFER TO THE IMAGE ABOVE}
A lunar eclipse occurs when the Earth comes directly between the sun and the moon, blocking sunlight from reach
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(3a)
(i) Intrusive Igneous Rocks (Plutonic):
These rocks form beneath the Earth’s surface when magma cools and solidifies slowly, resulting in coarse-grained textures. An example is granite, which is commonly used in construction and monuments due to its durability.
(ii) Extrusive Igneous Rocks (Volcanic):
These rocks form on the Earth’s surface when lava cools and solidifies quickly, leading to fine-grained or glassy textures. An example is basalt, which is found in volcanic regions and is often used in road construction.
(3b)
(i) Crystalline Texture:
Igneous rocks are composed of interlocking crystals formed during the cooling of molten magma or lava. The size of the crystals depends on the cooling rate; slower cooling forms larger crystals, while rapid cooling forms smaller ones.
(ii) Lack of Fossils:
Because igneous rocks form from molten materials at high temperatures, they do not contain fossils. Organic matter cannot survive in the extreme heat where these rocks originate.
(iii) Hardness and Durability:
Igneous rocks are generally hard and resistant to weathering and erosion. This quality makes them suitable for use in construction, such as in building foundations and road materials.
(iv) Presence of Minerals:
They contain a variety of minerals, including quartz, feldspar, and mica. The mineral composition determines the color and properties of the rock, with lighter-colored rocks being rich in silica and darker ones containing more iron and magnesium.
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(5a)
Underground water refers to water that is found below the earth’s surface in the pores and crevices of rocks and soil, forming aquifers that can be a source of water for wells and springs.
(5b)
(i) Permeable rocks: Permeable rocks are rocks that allow water to flow through them due to the interconnected pore spaces within the rock.
[Draw the diagram below]
(ii) Impermeable rocks: Impermeable rocks are rocks that do not allow water to pass through them due to their lack of interconnected pore spaces.
[Draw the diagram below]
(5c)
(PICK ANY FOUR)
(i) Precipitation levels
(ii) Evaporation rates
(iii) Soil type and composition
(iv) Depth of the bedrock
(v) Groundwater extraction
(vi) Slope of the land
(vii) Climate conditions
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(6a)
Glacial action refers to the processes of erosion, transportation, and deposition by glaciers as they move over the land, shaping the landscape through the force of ice and meltwater.
(6b)
(PICK ANY FOUR)
(i) Cirques: Bowl-shaped depressions formed at the head of a glacier.
(ii) Arêtes: Sharp ridges formed between two cirques.
(iii) U-shaped valleys: Wide, deep valleys carved out by glaciers.
(iv) Hanging valleys: Valleys left at higher elevations by the erosion of smaller glaciers.
(v) Horns: Pointed mountain peaks formed by the intersection of several arêtes.
(vi) Glacial erratics: Large boulders transported and deposited by glaciers.
(6c)
(PICK ANY TWO)
(i) Hydraulic action: The force of waves crashing against the coastline, dislodging and eroding rock.
(ii) Abrasion: The wearing away of rock by the impact of sediment carried by waves.
(iii) Attrition: The erosion of rock particles carried by waves colliding and breaking down into smaller fragments.
(iv) Corrosion: The chemical breakdown of rock material due to the acidity of seawater.
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(7a)
Vegetation refers to the plant life that covers a particular area, varying in terms of species composition, density, and distribution.
(7b)
Check the diagram below
(7ci)
=MANGROVE=
(PICK ANY THREE)
(i) Found in coastal areas with brackish water.
(ii) Consists of salt-tolerant trees and shrubs.
(iii) Protects coastlines from erosion.
(iv) Provides habitat for diverse marine life.
(v) Adapted to fluctuating water levels.
(vi) Roots help in trapping sediment and nutrients.
(7cii)
=GUINEA SAVANNAH=
(PICK ANY THREE)
(i) Open grassland with scattered trees.
(ii) Supports grazing animals like cattle and goats.
(iii) Has a distinct wet and dry season.
(iv) Vegetation adapted to seasonal rainfall patterns.
(v) Trees shed leaves during the dry season to conserve water.
(vi) Rich in biodiversity with a variety of plant and animal species.
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(8a)
Geographic data refers to information that is spatially referenced, meaning it is tied to specific locations on the Earth’s surface. This data includes various types of information such as coordinates, boundaries, attributes, and characteristics of physical or cultural features.
(8bi)
Maps are a fundamental source of geographical data in GIS. They provide visual representations of spatial information such as boundaries, roads, rivers, and land use. Maps can be used as base layers for GIS applications, allowing users to overlay and analyze other data layers on top of them.
(8bii)
Satellite images are another important source of geographical data in GIS. These images are captured by satellites orbiting the Earth and provide high-resolution views of the Earth’s surface. Satellite images are used for monitoring land cover changes, natural disasters, urban growth, and environmental assessments in GIS.
(8c)
(PICK ANY FOUR)
(i) Spatial data: Geographic data includes information about the location and shape of physical or cultural features on the Earth’s surface.
(ii) Attribute data: Geographic data also includes non-spatial information or attributes associated with spatial features, such as population, elevation, or land use type.
(iii) Topology: Geographic data in GIS maintains spatial relationships between different features, allowing for spatial analysis and modeling.
(iv) Metadata: Geographic data includes metadata that provides information about the source, accuracy, and quality of the data.
(v) Scale: Geographic data in GIS can be represented at different scales, from global to local, depending on the level of detail required for analysis.
(vi) Projections: Geographic data may be referenced to different map projections in GIS to accurately represent the Earth’s curved surface on a flat map.
(vii) Layers: Geographic data in GIS is organized into layers representing different thematic information, such as transportation networks, land cover, or administrative boundaries, which can be analyzed individually or combined for spatial analysis.
COMPLETED✅✅✅
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