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 221:

  What is crop rotation?

  Options:
  A) Growing of crops one after the other in a particular sequence
  B) Growing more than one crop at a time
  C) Growing of an associate crop in between the rows of the main crop
  D) Growing of crops together in strips
  Show Answer
  The correct answer is A .
• Question 222:

  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 223:

  Which of the following is not an organic manure?

  Options:
  A) Green manure
  B) Farmyard manure
  C) Compost
  D) Fertilizer
  Show Answer
  The correct answer is D .
• Question 224:

  The process whereby rocks are broken down into small particles through both physical and chemical factors is known as

  Options:
  A) Rock degradation
  B) Weathering
  C) Erosion
  D) Oxidation
  Show Answer
  The correct answer is B .
• Question 225:

  Cultural practices can be classified into the following except

  Options:
  A) pre-planting operations
  B) planting operations
  C) post-planting operations
  D) in-planting operations
  Show Answer
  The correct answer is D .
• Question 226:

  Which of the following is not a pre-planting operations?

  Options:
  A) land clearing
  B) Stumping
  C) Thinning
  D) Farm layout
  Show Answer
  The correct answer is C .
• Question 227:

  What is the purpose of using a scale of preference in agricultural decision-making?

  Options:
  A) To evaluate the environmental impact of farming practices
  B) To determine the most profitable crops to cultivate
  C) To allocate resources effectively among different activities
  D) To prioritize agricultural tasks based on urgency
  Show Answer
  The correct answer is C .
• Question 228:

  Which of the following is a powerful and expensive multipurpose motor vehicle used for lifting or pulling farm implements?

  Options:
  A) Bulldozer
  B) Tractor
  C) Sheller
  D) Incubator
  Show Answer
  The correct answer is B .
• Question 229:

  All but one are related to surface irrigation?

  Options:
  A) Mole drainage
  B) Natural flooding
  C) Sprinkler irrigation
  D) Check flooding
  Show Answer
  The correct answer is D .
• Question 230:

  The easiest method of determining soil texture in the field is by

  Options:
  A) moulding
  B) sieving
  C) sedimenting
  D) feeling
  Show Answer
  The correct answer is D .