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 241:

  Crop rotation has the following effects on the soil except

  Options:
  A) maintenance of soil fertility
  B) reducing concentration of soil pests
  C) improving soil structure
  D) predisposing soil to leaching
  Show Answer
  The correct answer is D .
• Question 242: 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 243:

  What is the primary focus of agronomy in agriculture?

  Options:
  A) Management of soil and crops
  B) Breeding and genetics of crops
  C) Study of climate and weather patterns
  D) Marketing and selling of agricultural products
  Show Answer
  The correct answer is A .
• Question 244:

  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 245:

  Which of the following is an example of a pasture commonly used in agriculture?

  Options:
  A) Corn plantation
  B) Orange orchard
  C) Cattle pasture
  D) Wheat field
  Show Answer
  The correct answer is C .
• Question 246:

  The classification of soils into sand, loam, and clay is largely determined by the percentage of

  Options:
  A) mineral matter
  B) organic matter
  C) soil water
  D) soil air
  Show Answer
  The correct answer is A .
• Question 247:

  Which of the following is not a sign of heat in farm animals?

  Options:
  A) loss of appetite
  B) restlessness
  C) udder enlargement
  D) grunting
  Show Answer
  The correct answer is C .
• Question 248: Farm labour is usually measured in terms of Options:
  A) amount of wages paid to labour
  B) hours or days of work by labour
  C) level of education of labour
  D) type of work done by labour.
  Show Answer
  The correct answer is B .
• Question 249:

  What is pollination in plants?

  Options:
  A) The dispersal of seeds by wind or animals
  B) The transfer of pollen from the anther to the stigma of a flower
  C) The process of seed formation after fertilization
  D) The production of flowers by a plant
  Show Answer
  The correct answer is B .
• Question 250:

  The botanical name of maize is

  Options:
  A) Corn seed
  B) Zea mays
  C) Rattus rattus
  D) Discorea spp
  Show Answer
  The correct answer is B .