Jamb Geography 1998 Past Questions and Answers

Question 16:

• JAMB 1998

The critical temperature at which the air being cooled becomes saturated with vapor is known as the?

A. Condensation trail
B. Relative humidity
C. Dew point
D. Wet adiabat

Question 17:

• JAMB 1998

Plant growth normally ceases, when the temperature falls below?

A. 0°C
B. 6°C
C. 10°C
D. 15°C

Question 18:

• JAMB 1998

A soil sample consisting of 49% sand, 28% silt and 23% clay is classified as?

A. Sand
B. Loam
C. Sandy clay
D. Clay

Question 19:

• JAMB 1998

Iron deposit is a natural resource when it occurs?

A. In high concentrations
B. With few impurities
C. In economic quantities
D. In sedimentary formations

Question 20:

• JAMB 1998

The fundamental role played by the decomposers in the functioning ecosystem is the?

A. Diposal of plant ana animals waste products
B. Releases of energy and nutrients locked up in organic litter
C. Precipitation of organic and mineral elements from the soil
D. Cycling of water and chemical elements