Jamb Agricultural Science Past Questions and Answers

Question 176:

• JAMB 2020

A biotic factor influencing agricultural production is

A. Rainfall
B. Predator
C. Soil structure
D. Wind

Question 177:

• JAMB 2020

Which of the following nutrient element is a macro-nutrient?

A. Phosphorus
B. Zinc
C. Iron
D. Manganese

Question 178:

• JAMB 2020

In encouraging farmers to produce more of a particular crop, the Nigerian government has helped farmers in marketing that crop through the establishment of

A. Rural schools of agriculture
B. Markets for the sale of crops
C. Marketing boards
D. Rural extension offices

Question 179:

• JAMB 2020

The diagram above shows parts of a plough.
Study it and answer this question.
The part labelled I in the diagram is the

A. Hitch
B. Handle
C. Plough share
D. Mould board

Question 180:

• JAMB 2020

Study the diagram above and answer question
The crop associated with the diagram above is?

A. Theobroma cacao
B. Zingiber officinale
C. Hevea brasiliensis
D. Gossypium hirsutum