Agricultural-Science Exam Past Questions and Answers | JAMB, WAEC and NECO

Agricultural science studies farming practices, including soil cultivation for growing crops and raising animals for food, wool, and other products.

• Question 91:

  Which of the following is a method of plant propagation that involves the use of plant parts?

  Options:
  A) Seed propagation
  B) Tissue culture
  C) Layering
  D) Grafting
  Show Answer
  The correct answer is D .
• Question 92: In crop production, ginger is propagated by Options:
  A) seed
  B) bulb
  C) rhizome
  D) corm
  Show Answer
  The correct answer is C .
• Question 93:

  The relative humidity in an incubator is usually set at

  Options:
  A) 10% - 30%
  B) 40% - 60%
  C) 70% - 80%
  D) 90% - 100%.
  Show Answer
  The correct answer is B .
• Question 94:

  Investments with long life span in agricultural economics are otherwise known as

  Options:
  A) capital
  B) entrepreneurship
  C) savings deposit
  D) profit
  Show Answer
  The correct answer is A .
• Question 95:

  

  The diagram above shows parts of a plough.

  Study it and answer this question.

  The part labelled I in the diagram is the

  Options:
  A) hitch
  B) handle
  C) plough share
  D) mould board
  Show Answer
  The correct answer is D .
• Question 96:

  Which of the following sources of farm power is most flexible and adaptable to farm operations?

  Options:
  A) animal power
  B) wind power
  C) human power
  D) solar power
  Show Answer
  The correct answer is C .
• Question 97:

  The most appropriate farm machinery for breaking soil is the

  Options:
  A) harrow
  B) plough
  C) ridger
  D) tractor
  Show Answer
  The correct answer is B .
• Question 98:

  Which one of these is not a factor that affect change in supply of agricultural produce?

  Options:
  A) Technology
  B) Changes in the cost of production
  C) Changes in prices of commodity
  D) Fixed cost
  Show Answer
  The correct answer is D .
• Question 99: The part labeled I is made of Options:
  A) lead.
  B) aluminium
  C) iron
  D) wood
  Show Answer
  The correct answer is B .
• Question 100:

  The type of soil formed is affected by the following factors except

  Options:
  A) Climate
  B) Vegetation
  C) Topography
  D) Farming systems
  Show Answer
  The correct answer is D .