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 21: Which of the following crops has a fibrous root system? Options:
  A) cotton
  B) coffee
  C) cowpea
  D) sugarcane
  Show Answer
  The correct answer is D .
• Question 22:

  Which of the following constitutes subsidy in agricultural enterprise?

  Options:
  A) supply of fertilizers to farmers at reduced price
  B) borrowing of money from a thrift society
  C) provision of money to farmers through commercial banks
  D) provision of services through cooperative societies
  Show Answer
  The correct answer is A .
• Question 23:

  The most effective method of controlling or preventing viral diseases in plants is by

  Options:
  A) practising crop rotation
  B) spraying crops regularly
  C) planting resistant varieties
  D) burning affected crops
  Show Answer
  The correct answer is C .
• Question 24:

  Calculate the salvage value of a tractor with a depreciation value of ₦10,580.00 and initial cost of ₦50,000 after a year of use

  Options:
  A) ₦10,580
  B) ₦30,290
  C) ₦39,420
  D) ₦60,580
  Show Answer
  The correct answer is C .
• Question 25:

  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 26:

  The following are categories of farmers based on adoption of innovation except

  Options:
  A) Innovators
  B) Early adopters
  C) Late adopters
  D) Never innovators
  Show Answer
  The correct answer is D .
• Question 27:

  Preservation of fish prevents the following except

  Options:
  A) Injury
  B) Spoilage
  C) Destruction
  D) Processing
  Show Answer
  The correct answer is D .
• Question 28:

  The damage to the stem of maize plants resulting in hollowness and lodging is most likely caused by

  Options:
  A) rodents
  B) grasscutters
  C) stem borers
  D) weevils
  Show Answer
  The correct answer is C .
• Question 29:

  Which of the following is NOT a principle of agronomy?

  Options:
  A) Controlling pests and diseases
  B) Managing soil fertility
  C) Promoting biodiversity conservation
  D) Maximizing crop yield
  Show Answer
  The correct answer is C .
• Question 30:

  The mating of unrelated individual animals within the same breed is called

  Options:
  A) Out breeding
  B) In - breeding
  C) Line breeding
  D) Cross breeding
  Show Answer
  The correct answer is A .