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 411:

  The practice of mating closely related animals is called

  Options:
  A) pen mating
  B) cross breeding
  C) outbreeding
  D) inbreeding
  Show Answer
  The correct answer is D .
• Question 412:

  In subsistence agriculture

  Options:
  A) yields are usually high
  B) surplus produce is small
  C) savings are made
  D) farm sizes are large
  Show Answer
  The correct answer is B .
• Question 413:

  Which of the following is an example of a farm implement used for soil preparation in agriculture?

  Options:
  A) Seeder
  B) Sprayer
  C) Harvester
  D) Plow
  Show Answer
  The correct answer is D .
• Question 414:

  The effects of practicing crop rotation include the following except

  Options:
  A) maintaining and improving soil fertility
  B) controlling soil erosion
  C) adding humus to the soil
  D) preventing the build-up of pests and diseases
  Show Answer
  The correct answer is C .
• Question 415:

  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 .
• Question 416:

  Which of these operations comes first in cultural practice?

  Options:
  A) Tillage
  B) Ridges
  C) Stumping
  D) Harvesting
  Show Answer
  The correct answer is C .
• Question 417: The anti-sterility vitamin in livestocks nutrition is Options:
  A) vitamin K
  B) vitamin E
  C) vitamin C
  D) vitamin B.
  Show Answer
  The correct answer is B .
• Question 418:

  The data for feed consumption and weighing gain of four farm animals labelled P, Q, R and S are shown below.

  P -50kg feed consumed and 20kg weight gained Q -90kg feed consumed and 30kg weight gained R -100kg feed consumed and 25kg weight gained S - 150kg feed consumed and 30kg weight gained.

  Which of the following must efficient feed converter?

  Options:
  A) P
  B) Q
  C) R
  D) S
  Show Answer
  The correct answer is A .
• Question 419:

  Methods of preserving fish include the following except

  Options:
  A) boiling
  B) drying
  C) smoking
  D) salting
  Show Answer
  The correct answer is A .
• Question 420:

  Gummosis disease of citrus is caused by

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