Agricultural Science 2015 Waec Past Questions and Answers

Question 16 :

• WAEC 2015

What is the percentage water content of soil sample which weighed 180g when fresh and 120g when oven-dried

A. 20.14%
B. 25.00%
C. 33.33%
D. 60.00%

Question 17 :

• WAEC 2015

A soil sample with a pHof 4.5 is said to be

A. Acidic
B. Alkaline
C. Neutral
D. Fertile

Question 18 :

• WAEC 2015

The propety of soil which cannot easily be change by a famer is the

A. Porosity
B. Structure
C. Texture
D. Acidity

Question 19 :

• WAEC 2015

A farmer continuously applies sulphate of ammonia to his faemland for many years, the resulatant soil solution is most likely to

A. Leave blue litmus paper unchanged
B. Change blue litmus paper to re
C. Change red litmus paper to blue
D. Be rich in soil microbes

Question 20 :

• WAEC 2015

Application of water to the subsoil through perforated pipes is known as

A. Flooding irrigation
B. Subsurface irrigation
C. Spinkler irrigation
D. Overhead irrigation