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 281:

  The study of insect pests of crops is called

  Options:
  A) entomology
  B) pathology
  C) agronomy
  D) synecology
  Show Answer
  The correct answer is A .
• Question 282:

  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 283:

  The scientific name for guinea grass is

  Options:
  A) panicum maximum
  B) imperata cylindrica
  C) cynodon dactylon
  D) andropogon gayanus
  Show Answer
  The correct answer is A .
• Question 284:

  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 285:

  The vertical section of the soil showing series of horizontal layers of different types of soil is called

  Options:
  A) Soil texture
  B) Soil layers
  C) Soil profile
  D) Soil type
  Show Answer
  The correct answer is C .
• Question 286:

  Rain water is made available to crops through

  Options:
  A) evaporation
  B) transpiration
  C) surface drainage
  D) root absorbtion
  Show Answer
  The correct answer is D .
• Question 287:

  The A-Horizon of soil profile is also called the

  Options:
  A) Top soil
  B) Sub-soil
  C) Parent materials
  D) Bedrock
  Show Answer
  The correct answer is A .
• Question 288:

  Farm animals can be classified into three main categories based on their primary purpose. Which of the following is NOT one of those categories?

  Options:
  A) Poultry
  B) Aquatic animals
  C) Companion animals
  D) Livestock animals
  Show Answer
  The correct answer is B .
• Question 289:

  In animal nutrition, iodine is essential for the production of

  Options:
  A) oxygen
  B) thyrozine
  C) insulin
  D) progesterone
  Show Answer
  The correct answer is B .
• Question 290: In crop production, ginger is propagated by Options:
  A) seed
  B) bulb
  C) rhizome
  D) corm
  Show Answer
  The correct answer is C .