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 301:

  If 100 pieces of pests is attacking an hectare of cocoa farm and 25% suddenly died while 40% of the remnant is sent for medical examination. What is the number of pest remaining?

  Options:
  A) 45
  B) 50
  C) 25
  D) 75
  Show Answer
  The correct answer is A .
• Question 302:

  Gummosis disease of citrus is caused by

  Options:
  A) aphids
  B) fungi
  C) white flies
  D) bacteria
  Show Answer
  The correct answer is B .
• Question 303:

  The correct sequence in the processes of crop improvement is

  Options:
  A) Introduction → selection → breeding
  B) Breeding → selection → introduction
  C) Breeding → introduction → selection
  D) Introduction → breeding → selection
  Show Answer
  The correct answer is A .
• Question 304:

  Which of the following is an objective of agricultural development programs?

  Options:
  A) Maximizing profits for individual farmers
  B) Increasing dependency on external inputs
  C) Enhancing sustainable agricultural practices
  D) Expanding land holdings for large-scale farms
  Show Answer
  The correct answer is C .
• Question 305:

  Heavy infestation of liver fluke causes poor absorption of fats in livestock by

  Options:
  A) blocking bile ducts thus preventing flow of bile
  B) destroying fat-digesting enzymes
  C) reducing ingestion of fats
  D) inhibiting the action of digestive enzymes
  Show Answer
  The correct answer is D .
• Question 306:

  Which of the following is a form of land ownership in which an individual holds complete ownership and control over a piece of land?

  Options:
  A) Tenancy
  B) Freehold
  C) Leasehold
  D) Commonhold
  Show Answer
  The correct answer is B .
• Question 307:

  Food shortage can be minimized by

  Options:
  A) efficient pest control services
  B) natural hazards
  C) illegal exportation of farm produce
  D) hoarding
  Show Answer
  The correct answer is A .
• Question 308:

  The most common grazing system in West Africa is

  Options:
  A) continuous grazing
  B) rotational grazing
  C) deferred grazing
  D) zero grazing
  Show Answer
  The correct answer is B .
• Question 309:

  The Mendelian law of segregation states that the characteristics which is hidden in an F1, reappears in F2 generation in a ratio

  Options:
  A) 1 : 2
  B) 2 : 2
  C) 1 : 3
  D) 3 : 2
  Show Answer
  The correct answer is C .
• Question 310:

  What is the primary characteristic of weeds in agriculture?

  Options:
  A) They are beneficial for crop growth
  B) They compete with crops for resources
  C) They are cultivated intentionally by farmers
  D) They do not require any maintenance
  Show Answer
  The correct answer is B .