Waec Agricultural Science 1993 Past Questions and Answers

Question 16:

• WAEC 1993

Which of the following processes will not lead to the loss of nutrients from the soil?

A. Erosion
B. Mulching
C. Harvesting
D. Burning
E. Leaching

Question 17:

• WAEC 1993

The physical properties of soil include the following except

A. Bulk density
B. Colour
C. Moisture content
D. Porosity
E. PH

Question 18:

• WAEC 1993

Which of the following problems will not be considered before installing irrigation equipment in a farm?

A. High cost of equipment and maintenance
B. Concentrartion of salt
C. Source of power
D. Availability of water
E. Build-up of pest and diseases

Question 19:

• WAEC 1993

Which of the following is the source of energy used by green plants for photosynthesis?

A. Electricity
B. Water
C. Wind
D. Sun
E. Machine

Question 20:

• WAEC 1993

One of the limitation of machanization of farms is

A. Reduction in the cost of production
B. Exposure of soil to the effects of climate
C. Increase in yield of crops
D. Reduction of farm labour
E. Cultivation of more area of land