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 1:

  Which of the following factors usually affects the colour of egg yolk?

  Options:
  A) age of the laying hen
  B) type of housing
  C) type of feed
  D) colour of the cock
  Show Answer
  The correct answer is C .
• Question 2: The part labeled I is made of Options:
  A) lead.
  B) aluminium
  C) iron
  D) wood
  Show Answer
  The correct answer is B .
• Question 3:

  What is the primary purpose of farm surveying in agriculture?

  Options:
  A) Mapping land boundaries
  B) Determining soil fertility
  C) Assessing crop yield
  D) Identifying pest infestations
  Show Answer
  The correct answer is A .
• Question 4:

  The natural resource utilized for production is

  Options:
  A) capital
  B) management
  C) labour
  D) land
  Show Answer
  The correct answer is D .
• Question 5:

  The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is

  Options:
  A) biotite
  B) quartz
  C) mica
  D) granite
  Show Answer
  The correct answer is B .
• Question 6:

  Which of the following is the correct order for land preparation?

  Options:
  A) land clearing → ploughing → harrowing → ridging
  B) land clearing → harrowing → ploughing → ridging
  C) land clearing → ploughing → ridging → harrowing
  D) land clearing → harrowing → ridging → ploughing
  Show Answer
  The correct answer is A .
• Question 7:

  In which of the soil layer does most biological activity occur?

  Options:
  A) B - horizon
  B) C - horizon
  C) D - horizon
  D) A - horizon
  Show Answer
  The correct answer is D .
• Question 8:

  

  Use the diagram below to this answer this question.

  This type of root is associated with

  Options:
  A) nitrogen fixation
  B) photosynthesis
  C) storage of organic acids
  D) storage of minerals
  Show Answer
  The correct answer is A .
• Question 9:

  The desktop computer used for data management in agri-business is

  Options:
  A) an analog computer
  B) a super computer
  C) a hybrid computer
  D) a mainframe computer
  Show Answer
  The correct answer is C .
• Question 10:

  The optimum temperature for storing yam tuber under cold storage is

  Options:
  A) 7°C
  B) 9°C
  C) 13°C
  D) 15°C
  Show Answer
  The correct answer is A .