Jamb Agricultural Science 2013 Past Questions and Answers

Question 41:

• JAMB 2013

An example of igneous rock is

A. Marble
B. Basalt
C. Slate
D. Dolomite.

Question 42:

• JAMB 2013

The most devastating agent of erosion is

A. Wild wind
B. Slope
C. Run-off water
D. Rodents.

Question 43:

• JAMB 2013

A farming practice that encourages the depletion of soil fertility is

A. Planting of cover crops
B. Crop rotation
C. Manual weeding
D. Continuous cropping

Question 44:

• JAMB 2013

The kind of tillage method most suitable for
maize is

A. Zero tillage
B. Minimum tillage
C. Maximum tillage
D. Contour ridges

Question 45:

• JAMB 2013

The major reason which necessitates the
expansion of agriculture is the increase in

A. Rainfalls
B. Population
C. Manpower
D. Animal power