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 61:

  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 .
• Question 62:

  What is the primary purpose of farm surveying in agriculture?

  Options:
  A) Mapping land boundaries
  B) Determining soil fertility
  C) Assessing crop yield
  D) Identifying pest infestations
  Show Answer
  The correct answer is A .
• Question 63:

  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 64: Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in Options:
  A) potassium
  B) phosphorus
  C) zinc
  D) nitrogen
  Show Answer
  The correct answer is D .
• Question 65:

  The following are the features of subsistence agriculture except

  Options:
  A) subsistence agriculture is mostly practised by peasant farms
  B) It requires the use of family labour
  C) Pests and diseases are not really controlled
  D) It requires the use of both skilled and unskilled labour
  Show Answer
  The correct answer is D .
• Question 66:

  The source of food for fishes in the river is called

  Options:
  A) rotten leaves
  B) planktons
  C) micro-organism
  D) algae
  Show Answer
  The correct answer is B .
• Question 67:

  Which of the weeds is dispersed by wind?

  Options:
  A) pig weed (Boerhavia diffusa)
  B) goat weed (Ageratum conizoides)
  C) Hause thorns (Acanthospermum hispidum)
  D) Tridax (Tridax procumbeus)
  Show Answer
  The correct answer is D .
• Question 68: The type of energy obtain from the sun is Options:
  A) hydro energy
  B) solar energy
  C) thermal energy
  D) wind energy.
  Show Answer
  The correct answer is B .
• Question 69:

  The following are necessary operations in maize cultivation except?

  Options:
  A) weeding
  B) thinning
  C) nursery practices
  D) fertilizer application
  Show Answer
  The correct answer is C .
• Question 70:

  What is crop science?

  Options:
  A) The study of agricultural machinery and equipment
  B) The study of weather patterns and their impact on crop growth
  C) The study of soil fertility and nutrient management
  D) The study of plant genetics and breeding
  Show Answer
  The correct answer is D .