All practice questions

An electric lamp of resistance $10\,\Omega$ is connected to a cell of electromotive force (e.m.f.) $12\,\text{V}$ and internal resistance $2\,\Omega$. What is the electrical power dissipated as heat inside the cell?

Match each Nigerian consumer protection agency on the left with its primary statutory function on the right.

A rigid container $A$ of volume $0.060\text{ m}^3$ contains an ideal gas at an absolute pressure of $4.50 \times 10^5\text{ Pa}$ and a temperature of $27^\circ\text{C}$. Container $A$ is connected via a narrow tube of negligible volume with a valve to an evacuated rigid container $B$ of volume $0.040\text{ m}^3$. The valve is opened, allowing gas to flow between the containers until equilibrium is established. If container $A$ is maintained at $27^\circ\text{C}$ while container $B$ is maintained at $127^\circ\text{C}$, what is the final equilibrium pressure of the gas in kilopascals (kPa)?

During a torrential rainstorm in a highland terrain, saturated soil and loose rock debris rapidly slide down a steep slope under the direct force of gravity. Which environmental hazard is illustrated by this event, and how does it fundamentally differ from weathering?

On a topographical map with a scale of $1 : 60,000$, a railway track connects Hill Station $X$ at an elevation of $460\text{ m}$ to Junction $Y$ at an elevation of $340\text{ m}$. If the distance between the two points measured along the map is $5\text{ cm}$, what is the average gradient of the slope between Station $X$ and Junction $Y$?

Match each African mining location on the left with its corresponding major mineral resource on the right.

Match each electrical quantity or unit in List I with its corresponding formula or definition in List II.

Arrange the following standard operational steps involved in customs clearance and duty assessment for imported commercial goods into their correct chronological sequence.

Arrange the following key historical milestones in Nigeria's transportation infrastructure development in chronological order, from the earliest to the most recent.

Commercial geography traces the physical and economic movement of goods entering global markets. Arrange the following stages of international agricultural export logistics in chronological order from the inland origin to the final overseas destination market.

In what sequence do the vertical vegetation layers of a tropical rainforest occur, starting from the ground level up to the open sky?

In the seasonally dry savanna regions of Northern Nigeria, intensive crop production during the dry season relies heavily on floodplain agricultural systems known as 'fadama' farming. Which of the following environmental factors primarily explains why fadama lands support successful crop cultivation when surrounding uplands are desiccated?

The siting of Nigeria's major paper and pulp industrial complex at Jebba in Kwara State along the River Niger was primarily determined by which geographical factor?

An air bubble with an initial volume of $4.0\text{ cm}^3$ is released by a scuba diver at a depth where the total pressure is $2.50 \times 10^5\text{ Pa}$ and the water temperature is $7^\circ\text{C}$. Calculate the volume of the bubble, in $\text{cm}^3$, just as it reaches the surface where the pressure is $1.00 \times 10^5\text{ Pa}$ and the water temperature is $77^\circ\text{C}$.

Match each specialized type of cooperative society with its primary operational mechanism and service delivery function.

Match each kinetic theory concept or gas behavior statement on the left with its corresponding microscopic mechanism or physical condition on the right.

An importer dispatches an order to an overseas purchasing agent containing rigid instructions regarding the precise manufacturer, price range, and shipping terms, leaving the agent with no discretion. Which of the following commercial documents has the importer issued?

Match each environmental conservation technique listed on the left with its primary operational mechanism or management function on the right.

In desert environments, extreme diurnal temperature variations cause the outer layers of exposed rock to expand during the day and contract at night, eventually resulting in the peeling off of concentric rock sheets. Which weathering process does this describe?

An environmental consulting team is preparing an Environmental Impact Assessment (EIA) for a proposed open-cast solid mineral mining operation in Plateau State, Nigeria. How should the following initial procedural steps of the EIA process be arranged in the correct chronological order from start to finish?