Jamb Agricultural Science 2015 Past Questions and Answers

Question 36:

• JAMB 2015

Which of the following statements is a disadvantage of human power? It

A. Controls other sources of farm power
B. Brings about least damage
C. Is easily available and controlled
D. Has low output.

Question 37:

• JAMB 2015

Which of the following factors are causes of deforestation in West Africa?
I. Expansion of cultivated land
II. High population growth rate
III. Conservation of wildlife in game reserves
IV. Urban growth

A. I, II and III only
B. II, III and IV only
C. I, II and IV only
D. I, II, III and IV.

Question 38:

• JAMB 2015

Which of the following properties of soil determines its water-holding capacity?


I. Texture
II. pH
III. Colour
IV. Structure

A. I and II only
B. I and IV only
C. II and III only
D. III and IV only

Question 39:

• JAMB 2015

In preparing for parturition of a sow, warmth should be provided to

A. Promote growth of hair of the young
B. Make the young suckle colostrum's
C. Prevent anaemia in the young
D. Prevent chilling of the young.

Question 40:

• JAMB 2015

In which layer of the soil profile do most biological activities occur?

A. D-horizon
B. C-horizon
C. B-horizon
D. A-horizon