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: Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in Options:
  A) potassium
  B) phosphorus
  C) zinc
  D) nitrogen
  Show Answer
  The correct answer is D .
• Question 2:

  The system in which a farmer uses a piece of land for a period and abandons it for another land is called

  Options:
  A) crop rotation
  B) mix cropping
  C) shifting cultivation
  D) leg farming
  Show Answer
  The correct answer is C .
• Question 3:

  The feed that is regularly offered to or consumed by the animal is called

  Options:
  A) Ratio
  B) Ration
  C) Nutrient
  D) Content
  Show Answer
  The correct answer is B .
• Question 4:

  

  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 5:

  A castrated cockerel is called?

  Options:
  A) Boiler
  B) Pullet
  C) Capon
  D) Hen
  Show Answer
  The correct answer is C .
• Question 6:

  The N'dama breed of cattle is primarily raised for

  Options:
  A) Fiber production
  B) Meat production
  C) Milk production
  D) Draft power
  Show Answer
  The correct answer is B .
• Question 7:

  What is the primary goal of agricultural extension services in the field of agricultural economics?

  Options:
  A) Promoting sustainable farming practices
  B) Maximizing crop yields
  C) Enhancing market access for farmers
  D) Increasing farm profits
  Show Answer
  The correct answer is C .
• Question 8:

  A farmer bought a farm implement for ₦12,500 in 2007. At the end of the fourth year, he sold it for ₦4,300. The annual depreciation of the implement is

  Options:
  A) ₦4,300
  B) ₦3,125
  C) ₦2,050
  D) ₦1,075
  Show Answer
  The correct answer is C .
• Question 9:

  What are biotic factors in an agricultural ecosystem?

  Options:
  A) Factors related to the climate and weather
  B) Factors related to the living organisms
  C) Factors related to the physical environment
  D) Factors related to the availability of nutrients
  Show Answer
  The correct answer is B .
• Question 10:

  Calculate the salvage value of a tractor with a depreciation value of ₦10,580.00 and initial cost of ₦50,000 after a year of use

  Options:
  A) ₦10,580
  B) ₦30,290
  C) ₦39,420
  D) ₦60,580
  Show Answer
  The correct answer is C .