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Agricultural Science Past Questions - Page 4

Exam Body:

Correct answers are highlighted in green.

Question 16

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%

Exam Body: WAEC

Question 17

A soil sample with a pH of 4.5 is said to be


A) Acidic

B) Alkaline

C) Neutral

D) Fertile

Exam Body: WAEC

Question 18

The property of the soil which cannot easily be changed by a farmer is the


A) Porosity

B) Structure

C) Texture

D) Acidity

Exam Body: WAEC

Question 19

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


A) Leave blue litmus paper unchanged

B) Change blue litmus paper to red

C) Change red litmus paper to blue

D) Be rich in soil microbes

Exam Body: WAEC

Question 20

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


A) Flooding irrigation

B) Subsurface irrigation

C) Spinkler irrigation

D) Overhead irrigation

Exam Body: WAEC