Jamb Agricultural Science 2020 Past Questions and Answers

Question 71:

• JAMB 2020

During the processes of soil formation, the cracks or crevices that are first noticed on the rocks are normally caused by

A. Ice
B. Man
C. Wind
D. Temperature

Question 72:

• JAMB 2020

A soil with the PH range of 6.1 to 6.9 can be described as

A. Alkaline
B. Very acidic
C. Slightly alkaline
D. Slightly acidic

Question 73:

• JAMB 2020

The main purpose of including leguminous crops in pastures is to serve as a source of

A. Proteins
B. Vitamins
C. Minerals
D. Carbohydrates

Question 74:

• JAMB 2020

Which of the following is not normally a pasture crop?

A. Mucuna
B. Centrosema
C. Stylosanthes
D. Giant star grass

Question 75:

• JAMB 2020

The damage to the stem of maize plants resulting in hollowness and lodging is most likely caused by

A. Rodents
B. Grasscutters
C. Stem borers
D. Weevils