Waec Agricultural Science 1992 Past Questions and Answers

Question 26:

• WAEC 1992

28. The freshly cut forage crops fed to livestock in their housing units are referred to as

A. Paddock grazing
B. Rotational grazing
C. Silage
D. Hay
E. Soilage

Question 27:

• WAEC 1992

Which of the following plant diseases is not caused by fungus

A. Black arm
B. Rice blast
C. Rice smut
D. Cassava leaf-spot
E. Maize rust

Question 28:

• WAEC 1992

Trees for lumbering will be regularly available in Nigerian forests if

A. There is an increase in annual rainfall
B. Fertilizers are applied to trees
C. Timber is no longer used for construction purposes
D. A tree is planted for everyone felled
E. Wood is no longer used as fuel

Question 29:

• WAEC 1992

The side effects of the various preventive and control measures of pests and diseases of crops include the following except

A. Environmental pollution
B. Poisoning of wildlife
C. Disruption of the ecosystem
D. Improvement in the quality of farm produce
E. Exposure of the farmer to health hazards

Question 30:

• WAEC 1992

Which of the following parts of plants are normally used for vegetative propagation?

A. Stem, root and seed
B. Stem, root and flower
C. Fruit, leaf and root
D. Leaf, flower and stem
E. Stem, root and leaf