Waec Agricultural Science 1988 Past Questions and Answers

Question 11:

• WAEC 1988

Which of the following is not associated with surface irrigation?

A. Natural flooding
B. Check flooding
C. Sprinkler irrigation
D. Mole drains
E. Tiles

Question 12:

• WAEC 1988

Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?

A. Sand
B. Silt
C. Gravel
D. Clay
E. Stone

Question 13:

• WAEC 1988

A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of

A. Calcium
B. Magnesium
C. Potasssium
D. Nitrogen
E. Phosphorus

Question 14:

• WAEC 1988

The earthworm is important to the farmer because it

A. Improves soil structure
B. Improves soil texture
C. Destroys soil pathogens
D. Adds nutrients to the soil
E. Prevents soil erosion

Question 15:

• WAEC 1988

The type of rocks formed from the molten magma is known as

A. Sedimentary
B. Igneous
C. Metamorphic
D. Schist
E. Sandstone