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Agricultural Science Past Questions and Answers

Waec Agricultural Science Questions

Question 856:
The chemical weathering that is responsible for changing haematite to limestone is
  • A Hydration
  • B Solution
  • C Oxidation
  • D Hydrolysis
View Answer & Explanation
Question 857:
Liming is used to correct soil's
  • A Neutrality
  • B Acidity
  • C Cation exchange capacity
  • D Porosity
View Answer & Explanation
Question 858:
A vertical section through the soil is referred to as soil
  • A Profile
  • B Horizon
  • C Structure
  • D Texture
View Answer & Explanation
Question 859:
In the determination of soil texture, a soil sample was found to be smooth and powdery when dry and formed a cast when wet. That soil is
  • A Clay
  • B Silt
  • C Loam
  • D Sand
View Answer & Explanation
Question 860:
Which of the following mineral elements is essential for chlorophyll formation?
  • A Sodium
  • B Molybdenum
  • C Boron
  • D Magnesium
View Answer & Explanation