Waec Agricultural Science 1997 Past Questions and Answers

Question 16:

• WAEC 1997

A farm practice which assists in maintaining the structure and fertility of soil and reduction in risk of the sun infestation is

A. Bush burning
B. Organic manuring
C. Crop rotation
D. Mulching
E. Fertilizer application

Question 17:

• WAEC 1997

Drainage types include the following except

A. Shadoof
B. Open
C. Channel
D. Surface
E. Underground

Question 18:

• WAEC 1997

Energy for photosynthesis in crops is provided by

A. Man
B. Animal
C. Wind
D. Sun
E. Water

Question 19:

• WAEC 1997

Cassava is normally planted at a spacing of about

A. 0.1 m x 0.5 m
B. 0.75 m x 1.0 m
C. 2.0 m x 3.5 m
D. 3.0 m x 3.0 m
E. 4.0 m x 5.5 m

Question 20:

• WAEC 1997

Cassava is cultivated in many ecological zones because of its

A. Industrial and domestic uses
B. Tolerance to low rainfall and soil fertility
C. Early maturity and weed suppression
D. Resistance to mosaic diseases and pest attacks
E. Low production costs