Waec Agricultural Science Questions
Question 986:
The rate of soil erosion is not affected by
- A Vegetation cover
- B Leaching
- C Rainfall
- D Topography
Question 987:
Which of the following soil properties cannot be easily altered?
- A Structure
- B Consistency
- C Texture
- D Fertility
Question 988:
A soil with low pH value can be improved by the addition of
- A Ammonium sulphate
- B Calcium carbonate
- C Sodium chloride
- D Sodium nitrate
Question 989:
What is the percentage water content of a soil sample which weighed 180g when fresh and 120g when oven dried?
- A 66.7%
- B 60.0%
- C 15.0%
- D 33.3%
Question 990:
Nitrogen may be lost from the soil through the following processes except
- A Crop removal
- B Soil erosion
- C Leaching
- D Irrigation