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 231:

  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 232:

  What is the primary goal of crop improvement in agriculture?

  Options:
  A) Reducing pest and disease resistance
  B) Expanding crop cultivation areas
  C) Increasing crop diversity
  D) Enhancing crop yield and quality
  Show Answer
  The correct answer is D .
• Question 233:

  Pasture crops are best used in preparing hay

  Options:
  A) when they are two weeks old
  B) just before flowering
  C) just after seed maturation
  D) after they have started to dry up
  Show Answer
  The correct answer is C .
• Question 234:

  __________ is a pictorial presentation meant to educate or inform the literate audience

  Options:
  A) Bulletin
  B) Paper
  C) News
  D) Poster
  Show Answer
  The correct answer is D .
• Question 235:

  A piece of land is said to be on lease to a farmer when the land is

  Options:
  A) inherited from the father
  B) given to him as a gift
  C) given as compensation
  D) given for a specific period on rental basis
  Show Answer
  The correct answer is D .
• Question 236:

  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 237:

  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 238:

  The adult male cattle is called

  Options:
  A) bull
  B) ram
  C) boar
  D) duck
  Show Answer
  The correct answer is A .
• Question 239: Crop rotation decreases the incidence of pests by Options:
  A) breaking life cycles of pests
  B) attracting pest predators
  C) sterilizing the soil
  D) maintaining soil fertility
  Show Answer
  The correct answer is A .
• Question 240:

  Which of the following characteristics is not correct of pigs?

  Options:
  A) prolific animals
  B) efficient feed converters
  C) source of meat
  D) source of land
  Show Answer
  The correct answer is D .