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 441:

  The introduction of proper planktons species into the pond is referred to as

  Options:
  A) fertilization
  B) innoculation
  C) stocking
  D) liming.
  Show Answer
  The correct answer is B .
• Question 442:

  Some of the by-products of fish include the following except

  Options:
  A) Fish meal
  B) Leather
  C) Oil
  D) Fish silage
  Show Answer
  The correct answer is B .
• Question 443:

  Which of the following is not component of soil?

  Options:
  A) air
  B) water
  C) organic matter
  D) texture
  Show Answer
  The correct answer is D .
• Question 444:

  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 445:

  Which of the following fruit is a capsule?

  Options:
  A) Okra
  B) Apple
  C) Mango
  D) Coconut
  Show Answer
  The correct answer is A .
• Question 446:

  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 447:

  Which one of these is not an advantage of newspaper as agricultural extension teaching methods?

  Options:
  A) It is restricted to only few literate farmer
  B) The pictures they often carry serves as useful teaching aids
  C) They are less expensive
  D) They can also be used in areas where there is no electricity
  Show Answer
  The correct answer is A .
• Question 448:

  The most unreliable source of power on the farm is

  Options:
  A) heat engine
  B) wind
  C) electricity
  D) animal
  Show Answer
  The correct answer is B .
• Question 449:

  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 450: A farming practice that encourages the depletion of soil fertility is Options:
  A) planting of cover crops
  B) crop rotation
  C) manual weeding
  D) continuous cropping
  Show Answer
  The correct answer is D .