Waec Agricultural Science 1998 Past Questions and Answers

Question 11:

• WAEC 1998

Which of the following is not a property of clay soil? it

A. Is heavy
B. Has low capillarity
C. Contains little pore spaces
D. Hardens and cakes when dry
E. Has high plasticity

Question 12:

• WAEC 1998

The particle size of silt is

A. Above 2 mm
B. 0.2 mm-2 mm
C. 0.02 mm-0.2 mm
D. 0.002 mm-0.02 mm
E. Below 0.002 mm

Question 13:

• WAEC 1998

If the percentage of nitrogen in ammonium sulphate fertilizer is 20%, calculate the amount of nitrogen in 500 kg of the fertilizer.

A. 20 kg
B. 40 kg
C. 50 kg
D. 100 kg
E. 250 kg

Question 14:

• WAEC 1998

Fruit formation in plants may be delayed by excessive availability of

A. Nitrogen
B. Phosphorus
C. Carbon
D. Sulphur
E. Molybdenum

Question 15:

• WAEC 1998

The system of irrigation whereby water is introduced as a sheet over farmland is referred to as

A. Shadoof
B. Channel
C. Flooding
D. Underground
E. Drip