Waec Agricultural Science 2011 Past Questions and Answers

Question 16:

• WAEC 2011

Which of the following groups of rocks is formed as a result of volcanic eruption?

A. Lomestone,basalt and shale
B. Basalt,granite and pumice
C. Sandstone,granite and quartzite
D. Marble,gneiss and shale

Question 17:

• WAEC 2011

The following fertilizers can be used to neutralize soil acidity except

A. Wood ash
B. Ammonium nitrate
C. Limestone
D. Calcium phosphosilicate

Question 18:

• WAEC 2011

The following are advantages of sub-surface irrigation except that

A. It is suitable for soils with low water holding capacity
B. It can be used only for specific types of crops
C. The rate of evaporation is greatly reduced
D. It reduces the incidence of pests

Question 19:

• WAEC 2011

Which of the following statement is a disadvantage of human power? it

A. Controls other sources of farm power
B. Brings about least damage
C. Is easily available and controlled
D. Has low output

Question 20:

• WAEC 2011

The instrument which enables a surveyor to find the direction of a base line is

A. Abney level
B. Ranging pole
C. Plumb bob
D. Magnetic compass