Waec Agricultural Science 1996 Past Questions and Answers

Question 16:

• WAEC 1996

Which of the following is not an effect of bush burning on the soil?

A. Sterilizing soil against some harmful soil micro-organisms
B. Destroying the structure of soil
C. Increasing rate of nitrogen mineralization
D. Predisposing soil erosion
E. Maintaining high levels of soil nutrients reserves

Question 17:

• WAEC 1996

Irrigation can be defined as

A. High water table for plants
B. A system of farming in whivh crops are provided with water artificially
C. A type of farming where crops depend mostly on rainfall
D. A type of farming practised in the fprest zones
E. The storage of water for future farm operation

Question 18:

• WAEC 1996

Which of the following is not an advantage of farm mechanization?

A. Timely farm operations
B. High operating cost
C. Green-manuring
D. Improvement of yields
E. Rapid land clearing

Question 19:

• WAEC 1996

A fruit with many seeds that has many joined cerpels and dehisces along all sutures from base to apex is referred to as a

A. Cereal
B. Legume
C. Capsule
D. Berry
E. Nut

Question 20:

• WAEC 1996

The maturity period of tomato in days is about

A. 40
B. 90
C. 140
D. 160
E. 180