Jamb Agricultural Science 2020 Past Questions and Answers

Question 66:

• JAMB 2020

The most appropriate farm machinery for breaking soil is the

A. Harrow
B. Plough
C. Ridger
D. Tractor

Question 67:

• JAMB 2020

One of the limitation of mechanization of farms is

A. Reduction in the cost of production
B. Exposure of soil to the effects of climate
C. Increase in yield of crops
D. Reduction of farm labour

Question 68:

• JAMB 2020

The physical properties of soil include the following except

A. PH
B. Colour
C. Moisture content
D. Porosity

Question 69:

• JAMB 2020

Which of the following is not component of soil?

A. Air
B. Water
C. Organic matter
D. Texture

Question 70:

• JAMB 2020

The soil nutrient which is important as a constituent of plant proteins and hormones is

A. Calcium
B. Sulphur
C. Iron
D. Potassium