Jamb Geography Past Questions and Answers

Question 286:

• JAMB 1982

Which of the following statements bests describes the weathering process known as exfoliation?

A. The chemical alteration of rock minerals on taking in water
B. The peeling away of rocks in thin layers acid
C. The dissolution of basic minerals by carbonic acid
D. The addition of oxygen to mineral elements to form oxides
E. The disintegration of foliated rocks

Question 287:

• JAMB 1982

Which of the instruments is used in measuring wind speed?

A. Wind vane
B. Barometer
C. Cup anamometer
D. Hygrometer
E. Speedometer

Question 288:

• JAMB 1982

Which of the following features is NOT commonly associated with a river at the floodplain stage?

A. Ox-bow lakes
B. Meanders
C. Levees
D. Knickpoint
E. Braided channel

Question 289:

• JAMB 1982

The 'Mediterranean type' of climate refers to?

A. Short wet summer, dry winter, mean temperature above 20°C and precipitation about 1,000 mm per year
B. Wet winter, dry summer, temperature varies from about 6°C in winter to about 20°C in summer and precipitation ranges between 700 and 1,000mm per year
C. Short wet summer, prolonged dry winter and percipitation is about 500 mm per year
D. Dry and wet climate; temperature around 20°C and percipitation ranges between 1,000 and 2,000 mm per year
E. Precipitation all the year round (about1,000 mm per year) with a peak in with warm summer (20-26°C) and mild winter (6-10°C)

Question 290:

• JAMB 1982

A river deposits its load of sediment if the?

A. Quantity of water in the river increases
B. River flows from a mountain area onto a plain
C. River enters a gorge
D. Velocity of the river increases
E. River approaches as waterfall