Waec Agricultural Science 2003 Past Questions and Answers

Question 11:

• WAEC 2003

The rate of soil erosion is not affected by

A. Vegetation cover
B. Leaching
C. Rainfall
D. Topography

Question 12:

• WAEC 2003

Which of the following soil properties cannot be easily altered?

A. Structure
B. Consistency
C. Texture
D. Fertility

Question 13:

• WAEC 2003

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 14:

• WAEC 2003

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 15:

• WAEC 2003

Nitrogen may be lost from the soil through the following processes except

A. Crop removal
B. Soil erosion
C. Leaching
D. Irrigation