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 231:

  Bulldozer is used for the following purpose except

  Options:
  A) bush clearing
  B) felling trees and stumps
  C) leveling the ground
  D) planting of trees
  Show Answer
  The correct answer is D .
• Question 232:

  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 233:

  What is rock weathering and how does it affect agriculture?

  Options:
  A) Rock weathering is the process of rocks eroding and washing away from agricultural fields
  B) Rock weathering is the process of breaking down rocks into smaller fragments
  C) Rock weathering is the process of rocks decomposing and releasing nutrients into the soil
  D) Rock weathering is the process of rocks absorbing water and expanding in size
  Show Answer
  The correct answer is B .
• Question 234:

  Primary tillage is also known as

  Options:
  A) Ploughing
  B) Harrowing
  C) Stumping
  D) Ridging
  Show Answer
  The correct answer is A .
• Question 235:

  Which of the following is not a source of farm power?

  Options:
  A) wind
  B) Bull
  C) Tractor
  D) Plough
  Show Answer
  The correct answer is D .
• Question 236:

  What is soil conservation, and why is it important in agriculture?

  Options:
  A) Soil conservation involves the removal of topsoil for agricultural purposes
  B) Soil conservation refers to the preservation and sustainable management of soil resources
  C) Soil conservation aims to maximize crop yields through intensive farming practices
  D) Soil conservation focuses on increasing soil fertility through the use of chemical fertilizers
  Show Answer
  The correct answer is B .
• Question 237: 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 238:

  Given a normal situation, what effect will an increase in the supply of cowpea have on its market price? The price

  Options:
  A) increases
  B) decreases
  C) is unaffected
  D) is unpredictable
  Show Answer
  The correct answer is B .
• Question 239:

  The most appropriate farm machinery for breaking soil is the

  Options:
  A) harrow
  B) plough
  C) ridger
  D) tractor
  Show Answer
  The correct answer is B .
• Question 240: The main objectives of establishing forest in the arid regions is to Options:
  A) check desert enroachment
  B) provide firewood for cooking
  C) provide bush meat
  D) improve the beauty of the environment
  Show Answer
  The correct answer is A .