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 181: The following are advantages of sub-surface irrigation except that Options:
  A) it is suitable for soils with low water holding capacity
  B) it can be used only for specific types of crops
  C) the rate of evaporation is greatly reduced
  D) it reduces the incidence of pests
  Show Answer
  The correct answer is B .
• Question 182:

  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 183:

  The following are types of planters except

  Options:
  A) Broadcast crop planter
  B) Row crop planter
  C) Grain drill planter
  D) Ridger planter
  Show Answer
  The correct answer is D .
• Question 184:

  What is the primary purpose of mixed cropping in agriculture?

  Options:
  A) Maximizing the yield of a single crop
  B) Simplifying farm management practices
  C) Enhancing soil fertility through crop rotation
  D) Reducing the risk of crop failure
  Show Answer
  The correct answer is D .
• Question 185: An example of igneous rock is Options:
  A) marble
  B) basalt
  C) slate
  D) dolomite.
  Show Answer
  The correct answer is B .
• Question 186:

  A condition in which a gene does not manifest observable characteristics in the presence of its dominant allele is known as

  Options:
  A) dominance
  B) mutation
  C) recessiveness
  D) homozygosity
  Show Answer
  The correct answer is C .
• Question 187:

  

  Study the diagram above and answer the question.

  The farm tool associated with the diagram above is

  Options:
  A) Knife
  B) Secateurs
  C) Shears
  D) Cutlass
  Show Answer
  The correct answer is A .
• Question 188:

  Which of the following is a type of land tenure system?

  Options:
  A) Freehold system
  B) Keyhold system
  C) International system
  D) Land tenure system by theft
  Show Answer
  The correct answer is A .
• Question 189: If T represents the gene for tallness while t represents dwarfness. The genotypic ratio of the second filial generation will be Options:
  A) 3:1
  B) 1:2:1
  C) 2:2
  D) 4:0
  Show Answer
  The correct answer is B .
• Question 190:

  What is the primary objective of agricultural research?

  Options:
  A) Developing new farming technologies
  B) Increasing crop diversity
  C) Promoting organic farming practices
  D) Enhancing agricultural productivity and sustainability
  Show Answer
  The correct answer is D .