Agricultural Science 1990 Waec Past Questions and Answers

Question 31 :

• WAEC 1990

The destructive effects of variegated grasshoppers are conspicuously observed on

A. Cassava and yam crops
B. Cocoa and citrus crops
C. Cowpea and maize crops
D. Maize and cassava crops
E. Citrus and weeds

Question 32 :

• WAEC 1990

A castrated male fowl is known as

A. Cock
B. Capon
C. Cockerel
D. Hen
E. Broiler

Question 33 :

• WAEC 1990

The type of feed which contains the essential nutrients in the right concentrations and proportions is known as

A. Growers mash
B. Weaners diet
C. Creep feed
D. Concentrate
E. Balance diet

Question 34 :

• WAEC 1990

Which of the following is not a reason why planting a mixture of grass and legume on a pasture is economical to the farmer? The

A. Mixture can harbour pests
B. Mixture helps in preventing soil erosion
C. Farmer will save on fertilizer
D. Mixture provides a balanced feed for livestock
E. Mixture increases the rate of productyion of livestock

Question 35 :

• WAEC 1990

The parts of the body affected by Newcastle disease of poultry are the

A. Digestive and circulatory systems
B. Reproductive and excretory tracts
C. Nervous system and respiratory tract
D. Air-sac and the comb
E. Comb and the legs