Agricultural Science Past Questions and Answers

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 1702:

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

A D-horizone
B C-horizone
C B-horizone
D A-horizone

Question 1703:

Which of the following statements is correct about micro-nutrients? They

A Promote formation of only root nodules
B Are required by plants in very small quantities
C Are fixed into the soil through microbial activity
D Increase crop tolerance to pest attack

Question 1704:

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 1705:

Which of the following statements about soil organisms is false?

A Soil pH will attack population of soil organisms
B Population of soil living organisms is increased with increase in soil organic matter
C Soil with good texture and structure cannot harbour soil microbes
D Soil temperature affects the activities of soil organisms