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 81:

  What does the term "recombinant DNA" refer to in biotechnology?

  Options:
  A) DNA synthesized in a laboratory
  B) DNA replicated using polymerase chain reaction (PCR)
  C) DNA extracted from ancient fossils
  D) DNA modified to contain genes from different organisms
  Show Answer
  The correct answer is D .
• Question 82: Limitations of farm mechanization in West Africa do not include Options:
  A) land fragmentation
  B) high capital investment
  C) availability of spare parts
  D) high level technical know-how
  Show Answer
  The correct answer is A .
• Question 83:

  What is agronomy?

  Options:
  A) The study of crop production and soil management
  B) The study of animal breeding and genetics
  C) The study of agricultural machinery and equipment
  D) The study of plant diseases and pest control
  Show Answer
  The correct answer is A .
• Question 84:

  Which of the following is a common problem in agricultural economics and extension?

  Options:
  A) Inadequate market infrastructure
  B) Excessive government regulations
  C) Overreliance on chemical inputs
  D) Lack of access to modern technology
  Show Answer
  The correct answer is D .
• Question 85:

  Which of the following is not a breed of rabbits?

  Options:
  A) New zealand white
  B) Land race
  C) Chincilla
  D) Californian white
  Show Answer
  The correct answer is B .
• Question 86:

  Which of the following is a disadvantages of mass method

  Options:
  A) It is very expensive to operate
  B) It is not time consuming
  C) Larger audience can be reached
  D) Does not necessarily require the presence of an agent
  Show Answer
  The correct answer is A .
• Question 87:

  Primary tillage is also known as

  Options:
  A) Ploughing
  B) Harrowing
  C) Stumping
  D) Ridging
  Show Answer
  The correct answer is A .
• Question 88:

  Increase in farm produce is not usually improved by the

  Options:
  A) use of improved crop varieties
  B) Increased use of manure and fertilizer
  C) Improved sales of crop and livestock
  D) Use of better farm equipment and tools
  Show Answer
  The correct answer is C .
• Question 89:

  What are the important properties of soil in agriculture?

  Options:
  A) pH, organic matter content, and water-holding capacity
  B) Drainage, cation exchange capacity, and soil depth.
  C) All of the above
  D) Texture, structure, and fertility
  Show Answer
  The correct answer is C .
• Question 90:

  Which of the followings is not an abiotic components of an ecosystem?

  Options:
  A) Temperature
  B) Oxygen
  C) Topography
  D) Micro-organisms
  Show Answer
  The correct answer is D .