Waec Agricultural Science 2008 Past Questions and Answers

Question 36:

• WAEC 2008

Which of the following pesticides effectively control maize stem borers?

A. Systematic insecticides
B. Contact poisons
C. Nematicides
D. Fumigants

Question 37:

• WAEC 2008

Which of the following combinations of practices best controls groundnut rosette disease?

A. Late planting and spraying of insecticide
B. Early planting and spraying of nematicide
C. Late planting and spraying of fungicide
D. Early planting and spraying of insecticide

Question 38:

• WAEC 2008

Determine the number of bottles of a herbicide required to spray 25 hectares of farmland, if one bottle is needed to prepare 100 litres and the diluted product product is applied at a rate of 20 litres per hectare.

A. 2 bottles
B. 5 bottles
C. 8 bottles
D. 11 bottles

Question 39:

• WAEC 2008

The milk secreting organ in cattle is the

A. Dewlap
B. Udder
C. Comb
D. Muzzle

Question 40:

• WAEC 2008

A developing embryo derives its nutrition from the mother

A. Through the blood vessels located in the placenta
B. By sucking the mammary glands
C. By direct diffusion through the blood vessels in the liver
D. Through the blood vessels located in the intestine of the mother