Question 31:

• JAMB 2019

The exploitation of timber in equatorial Africa causes

A. Environmental pollution
B. Less rainfall run-off
C. Soil erosion
D. High cost of foreign products

Question 32:

• JAMB 2019

Soil texture is determined primarily by

A. Particle sizes
B. Profile horizons
C. Major components
D. Nutrient status

Question 33:

• JAMB 2019

A desert country which has high population density supported by irrigation is

A. Sudan
B. Egypt
C. Kuwait
D. Namibia

Question 34:

• JAMB 2019

The speed and capacity of a train are influenced by the

A. The edge of the railway line
B. Length of the railway line
C. Width of the railway gauge
D. Depth of the railway line

Question 35:

• JAMB 2019

Which of the following factors may lead to an area being densely populated?

A. Rugged mountains
B. High plateaux
C. Active volcanoes
D. Lowland plains