2022 JAMB GEOGRAPHY PAST QUESTIONS AND ANSWERS

A dot map is most suitable for showing spatial distribution because it allows representation of specific quantities by location, ideal for showing cattle distribution across regions. Other methods don’t depict such spatial spread effectively.

Savannah plants are adapted to alternating water supply due to the region’s seasonal rainfall. This adaptation helps them survive both wet and dry seasons, unlike other options like light or temperature variations.

Kenya’s economy heavily relies on coffee, sisal, and maize as export crops, especially coffee and sisal, which thrive in its climate. Cocoa and rubber are less significant to Kenya’s agriculture.

Latex is a natural polymer derived from plants, making it non-mineral. Minerals like zinc, coal, and tin are inorganic substances typically mined, unlike plant-based latex.

In ascending order, smaller numbers represent larger scales. Therefore, the correct order is 1:200, 1:50,000, 1:200,000, and then 1:300,000.

When using a compass traverse, the compass must be held horizontally, not vertically, to avoid errors. This helps the compass needle rotate freely without interference.

Decomposition is a chemical process, while denudation involves erosion, transportation, and deposition of surface materials due to agents like wind or water.

If town Y’s local time is 12:00 noon while GMT is 6:00 pm, it’s 90° W, calculated by 6 hours x 15° per hour (Earth’s rotation rate).

The food chain Grass→Toad→Grasshopper→Rat is biologically incorrect as grasshoppers (herbivores) cannot eat toads. All other food chains follow a correct progression of energy flow from producers to consumers.

Deforestation actually increases erosion risks. Erosion-control activities typically include contour ploughing, cover cropping, and afforestation.

GIS aids urban planning, resource management, and site location, but does not directly relate to financial management tasks like fund mismanagement.

Spurs are ridges that extend from highlands to low areas. They form V-shaped patterns pointing downhill. Valleys, ridges, and gorges don’t describe this formation.

A batholith is a huge mass of igneous rock with a dome-like top and horizontal base, typically formed deep within the Earth’s crust.

A seismograph measures earthquake intensity by recording ground motion. The Richter Scale quantifies magnitude, while Earthometer and shock wave are incorrect terms.

An arête forms when two glacial valleys or corries erode back-to-back, creating a sharp, knife-like ridge. Pyramidal peaks, cirques, and striations are different glacial features.

Infertile soil is typically avoided when siting settlements as it cannot support agriculture. Other factors like water supply, land availability, and defense are beneficial for settlement.

Conurbation refers to an area where neighboring towns and cities merge due to expansion. Hamlet and homestead are smaller rural settlements, and megapolis refers to a large urban area.

Trade liberalization is an objective of ECOWAS to facilitate free trade among members, unlike other issues like political instability and language barriers that present real challenges.

Vine, a type of grape, is cultivated in North-West Africa, unlike pineapples, tangerines, and pears, which are more common in other tropical regions.

In West Africa, colonial powers promoted plantation agriculture for cash crops. Other statements are inaccurate or less relevant to the region’s agriculture during colonial rule.

Ecosystem interdependence means various components interact and support each other, forming a balanced, connected system. Other options imply conflict rather than cooperation.

Degradation is a negative process harming the environment, while preservation, stabilization, and afforestation are positive control measures.

Deflection of winds is due to Earth’s rotation (Coriolis effect), not its shape. Other examples like the circular horizon and circumnavigation confirm Earth’s roundness.

Coal is a sedimentary rock and a major energy source, unlike sandstone, granite, and graphite, which do not serve as primary energy sources.

Water transport is the slowest yet cost-effective, often used for bulk goods over long distances. Other modes are generally faster and/or more expensive.

Developing countries often face a lack of technical expertise in rail transport, impacting infrastructure and service quality. Low cost is not a limiting factor.

The North Atlantic route is a major global shipping route, connecting Europe and North America, unlike the other regional routes.

Poor visibility affects safe and efficient transportation. Soil erosion, rivers, and marshes are unrelated to global transportation issues.

Savannah is not naturally found in Lagos, which has rainforests, freshwater swamps, and coastal mangroves.

Mining is typically industrial and less associated with village economies, which are more focused on small-scale shopping, lumbering, and religious activities.

A state is formed from multiple local government areas. Towns, villages, and megapolis refer to different settlement sizes and types.

Mercury’s orbit around the Sun takes 88 Earth days due to its proximity to the Sun. Other options represent longer orbits of planets like Earth and Venus.

The cold ocean currents reduce moisture, causing the Horn of Africa’s dry climate, unlike other geographic features listed.

Bush burning hinders climax vegetation growth by damaging flora. Other activities, like mining and animal grazing, also impact but less severely.

Settlement refers to an area of buildings inhabited by people. The other options do not specifically imply population presence.

Isohels connect areas with equal sunshine, similar to other isopleths like isobars for pressure and isotherms for temperature.

Compass traversing’s complexity and cost are disadvantages, but it’s suitable for large areas. Lack of technical experts is unrelated to the method’s limitations.

A closed traverse starts and ends at known points, unlike open traverses. Station and leg traverse are unrelated terminologies.

The Watkin’s clinometer measures slopes. Other instruments like the optical square, offset staff, and Gunter’s chain serve different surveying purposes.

New York is not on the North Atlantic route, unlike Hamburg, Rotterdam, and Southampton, which are commonly on this route.