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 41:

  The following are advantages of using disc plough over mouldboard plough in West Africa except

  Options:
  A) Disc plough makes deeper cuts than mouldboard plough
  B) Disc plough buries weeds more completely than mouldboard plough
  C) The disc plough is designed to roll over stumps and obstacles which may easily damage the edges of mouldboard plough
  D) Mouldboard plough makes deeper cuts than disc plough
  Show Answer
  The correct answer is D .
• Question 42: An advantage of weeds is that they are used to Options:
  A) control insect pest
  B) check grazing by animals
  C) check erosion
  D) control diseases.
  Show Answer
  The correct answer is C .
• Question 43:

  All are factors to consider when planning a farmstead except?

  Options:
  A) Accessibility
  B) Topography
  C) Soil type
  D) Irrigation
  Show Answer
  The correct answer is D .
• Question 44:

  What are biotic factors in an agricultural ecosystem?

  Options:
  A) Factors related to the climate and weather
  B) Factors related to the living organisms
  C) Factors related to the physical environment
  D) Factors related to the availability of nutrients
  Show Answer
  The correct answer is B .
• Question 45:

  What are the primary benefits of agricultural extension services?

  Options:
  A) Preservation of traditional farming practices
  B) Enhanced knowledge and skills of farmers
  C) Increased crop diversity and yield
  D) Improved market access for agricultural products
  Show Answer
  The correct answer is C .
• Question 46:

  The most common factor affecting land use is

  Options:
  A) population pressure
  B) solar radiation
  C) climatic influence
  D) type of soil
  Show Answer
  The correct answer is A .
• Question 47:

  The pox disease in livestock are caused by

  Options:
  A) bacteria
  B) viruses
  C) protozoa
  D) fungi
  Show Answer
  The correct answer is B .
• Question 48:

  Reduction of ten seedlings of maize to two per stand is referred to as

  Options:
  A) Thinning
  B) Spacing
  C) Weeding
  D) Pruning
  Show Answer
  The correct answer is A .
• Question 49:

  Which of the following is not normally a pasture crop?

  Options:
  A) mucuna
  B) centrosema
  C) stylosanthes
  D) giant star grass
  Show Answer
  The correct answer is A .
• Question 50:

  In which of the soil layer does most biological activity occur?

  Options:
  A) B - horizon
  B) C - horizon
  C) D - horizon
  D) A - horizon
  Show Answer
  The correct answer is D .