![2025 NECO Geography (OBJ & Practical) Answers [1st July]](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEit60GqUzL1yU6CEh1H4FVh2SXuOwdumCPBDVGnE8lUyiEpq5sQ7C8cupUjnyxQlFKBzKnLnh66F7OzHBjil1nY6hZCdESmk_ADBxHUgxKWTvA6JMsmFE0GOCf5P3QSeWqf10azbIKOoq0/s1600/NECO.jpg "2025 NECO Geography (OBJ & Practical) Answers [1st July]")
A. NECO 2025 GEOGRAPHY (OBJECTIVES) ANSWERS:
1-10: CBECADAEAB11-20: DBEBDBCBED
21-30: ACAEBBEEBE
31-40: AADAEDEBAC
41-50: ABDBCCDAAA
51-60: ADEDCAEDCE
B. NECO 2025 GEOGRAPHY (PRACTICAL) / PHYSICAL ANSWERS:
(1c)
(PICK ANY ONE)
The western part of IFO DISTRICT map has a varied relief with hills, valleys, and undulating terrain. Drainage patterns have influenced the relief, creating dissected valleys. Valleys formed by rivers and streams create lowland areas within the highlands. The relief influences human activities such as farming, transportation, and settlement patterns
OR
The western part of the Ifo District map is undulating with hills, valleys, and dissected terrain. Elevation ranges between 250m and 350m, with steep and gentle slopes. Drainage patterns have influenced the relief, creating dissected valleys. The relief is suitable for certain types of settlement and farming activities on the gentle slopes and valleys.
(3a)
(PICK ANY THREE)
(i) Granite
(ii) Basalt
(iii) Batholith
(iv) Diorite
(v) Gabbro
(3b)
(PICK ANY THREE)
(i) Crystalline in nature: Igneous rocks have a crystalline texture
formed when molten magma or lava cools and solidifies, causing minerals
to interlock tightly. This crystalline structure makes the rocks
compact, hard, and durable, enabling them to resist weathering and
erosion in various environments.
(ii) Lack of fossils: Igneous rocks do not contain fossils because they
originate from molten magma or lava, which has high temperatures that
destroy any pre-existing organic remains. As a result, no plant or
animal parts can survive in igneous rocks during their formation and
solidification.
(iii) Presence of joints: Igneous rocks often develop joints and cracks
due to cooling and contraction after solidification. These joints occur
without displacement and may form in sets, helping water and plant roots
penetrate, contributing to gradual weathering of the rocks over a long
period.
(iv) Hard and resistant: Igneous rocks are generally hard and resistant
to weathering and erosion due to their crystalline nature and
interlocking mineral crystals. This hardness makes them durable and
allows them to form highlands, mountains, and other prominent landforms
that resist wearing away easily.
(v) Variety in texture: The texture of igneous rocks varies based on the
cooling rate of magma or lava. Slow cooling beneath the surface
produces coarse-grained rocks like granite, while rapid cooling on the
surface forms fine-grained rocks like basalt, giving each rock distinct
appearance and structure.
(vi) Mineral composition: Igneous rocks contain minerals such as quartz,
feldspar, mica, and ferromagnesian minerals, which influence their
colour, density, and appearance. These minerals are formed during
cooling and solidification, and their arrangement and abundance help in
identifying different types of igneous rocks.
(3c)
(PICK ANY FOUR)
(i) They provide building and construction materials such as granite and limestone.
(ii) Rocks serve as sources of valuable minerals like gold and iron ore.
(iii) They are used for road construction, especially crushed stones.
(iv) Rocks help in the formation of fertile soils through weathering.
(v) They are used in the production of cement (from limestone).
(vi) Rocks serve as water reservoirs when they form aquifers in permeable layers.
(5a)
(PICK ANY ONE)
A Karst region is a geographical area characterized by distinctive
landforms that result from the chemical weathering and erosion of
soluble rocks, especially limestone.
OR
A Karst region is a landscape formed mainly by the dissolution of soluble rocks like limestone, dolomite, and gypsum.
OR
A karst region is an area of land formations created by eroding and
dissolving portions of limestone or other soluble rock layers above or
below the ground.
(5b)
(PICK ANY FIVE)
(i) Caves
(ii) Caverns
(iii) Stalactites
(iv) Stalagmites
(v) Underground rivers
(vi) Sinkholes)
(vii) Dolines
(viii) Solution tunnels
(5c)
(PICK ANY FOUR)
(i) Karst regions provide a vital source of underground water.
(ii) They attract tourists due to their unique landforms.
(iii) They offer opportunities for geological and environmental research.
(iv) Fertile valleys in karst areas support some agricultural activities.
(v) Caves in karst regions serve as habitats for rare species.
(vi) Some karst caves hold historical and archaeological importance.
(vii) They aid in natural underground drainage of surface water.
(5d)
(PICK ANY FIVE)
(i) Water supply is unreliable due to rapid underground drainage.
(ii) Sinkholes can suddenly collapse, causing damage to property.
(iii) Soil cover is often thin, limiting agricultural use.
(iv) Groundwater is easily polluted due to lack of filtration.
(v) Construction is difficult due to unstable ground and hidden cavities.
(vi) Access to water sources can be challenging.
(vii) Ecosystems in caves are fragile and easily disturbed.
(6a)
(PICK ANY ONE)
Environmental balance is the state of equilibrium in the environment
where the natural resources, living organisms, and non-living components
interact in a stable way without causing harm to one another.
OR
Environmental balance refers to the stable relationship between living
and non-living components of the environment, where natural resources
are used sustainably, and organisms interact without causing harm,
ensuring that the environment remains healthy for present and future
generations.
OR
Environmental balance is when the environment is in a stable condition,
and all living things like plants and animals, as well as non-living
things, exist and interact without causing damage, ensuring that nature
remains healthy and productive.
(6b)
(PICK ANY FOUR)
(i) Afforestation and reforestation.
(ii) Proper waste disposal.
(iii) Controlled use of chemical fertilizers and pesticides.
(iv) Enforcement of environmental laws.
(v) Practicing crop rotation and mixed farming.
(vi) Conservation of water resources.
(vii) Use of renewable energy sources
(6c)
(PICK ANY TWO)
(i) Loss of fertile soil: Erosion removes the topsoil containing
essential nutrients needed for plant growth, reducing the fertility of
the soil. This leads to poor crop yield and affects food supply in the
ecosystem.
(ii) Destruction of habitats: Erosion can wash away vegetation and
disturb the natural landscape, destroying habitats for many plants and
animals. This leads to the displacement or death of organisms within the
affected ecosystem.
(iii) Water pollution: Eroded soil particles are carried into water
bodies, increasing the level of sedimentation in rivers and streams.
This reduces water quality and affects the survival of aquatic
organisms.
(iv) Formation of gullies: Severe erosion can create deep channels or
gullies on the land surface, damaging farmlands and roads. These gullies
disrupt human activities and destroy the living environment of many
species in the area.
(8a)
(PICK ANY FOUR)
(i) Satellite images
(ii) Aerial photographs
(iii) Field survey
(iv) Topographic maps
(v) Census data
(vi) GPS (Global Positioning System) data.
(vii) Existing digital maps and databases.
(8b)
(PICK ANY THREE)
(i) Crime Mapping: GIS helps in identifying, recording, and mapping crime hotspots in Nigeria by displaying areas with high crime rates on digital maps. It assists security agencies in tracking criminal activities, planning effective patrols, and deploying security personnel to troubled zones, thereby reducing crime and improving community safety.
(ii) Monitoring Movement: GIS assists in tracking the movement of people, goods, and vehicles across regions in Nigeria. It helps security agencies detect suspicious activities, manage border security, and monitor illegal migration or smuggling, enhancing security control across the country.
(iii) Emergency Response Planning: GIS is used to plan and visualize emergency evacuation routes during security crises. It helps locate emergency services such as hospitals and police stations, enabling quick responses during attacks or conflicts, thereby saving lives and reducing casualties.
(iv) Resource Allocation: GIS enables security agencies to allocate personnel and equipment efficiently by providing spatial data on insecurity-prone areas. This ensures security resources are used effectively, allowing adequate coverage and quick response in areas with higher security threats.
(v) Analysis of Security Trends: GIS helps in analyzing crime and insecurity patterns over time, enabling security agencies to identify trends and predict potential security threats. This supports effective decision-making and planning to prevent crimes and improve the overall security system in Nigeria.
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