Jamb Geography 1990 Past Questions and Answers

Question 6:

• JAMB 1990

The progressive widening of joints and cracks in limestone by solutions, initially leads to the formation of?

A. Grikes and clints
B. Stalactities and stalagmites
C. Caves and caverns
D. Cliff and dry valleys

Question 7:

• JAMB 1990

A river loses energy and may deposit some of its load if?

A. Its bed and banks become smoother
B. Its discharge increases
C. Its gradient decreases
D. It becomes narrow and deep

Question 8:

• JAMB 1990

Chemical weathering is both rapid and intense in the humid tropics because of?

A. Low annual range of temperature
B. High rainfall and temperature
C. The presence of easily weathered rocks
D. A large volumes of run-off

Question 9:

• JAMB 1990

Coastal deserts are likely to occur in areas where onshore winds which are?

A. Cold blow over cold ocean currents
B. Warm blow over warm ocean currents
C. Cold blow over warm ocean currents
D. Warm blow over cold ocean currents

Question 10:

• JAMB 1990

Most of the heat received by the atmosphere comes directly from?

A. The sun
B. The earth's surface
C. Clouds
D. Air masses