Waec Agricultural Science 2005 Past Questions and Answers

Question 61:

• WAEC 2005

(a) List ten poultry equipment and state the main use of each. (b) Name two parts of a tractor involved in the coupling and operation of implements. (c) State four maintenance practices of a tractor.

Question 62:

• WAEC 2005

(a) Define climate and state three of its importance in agriculture. (b) Explain five ways in which high rainfall affects agricultural production. (c) State the forms in which water exist in the soil. (d) Mention three ways through which soil water may be lost

Question 63:

• WAEC 2005

(a)In an experiment on soil porosity, the following measurements were taken and recorded: Volume of dry soil = 50 cm³, Volume of water = 50 cm³, Total volume of soil and water = 75 cm³. Use the above information to (i) find the volume of air space in the soil sample. (ii) calculate the porosity of the soil sample. (b) Mention three reasons why soil porosity is important in agriculture. (c) State four characteristics of each of igneous and sedimentary rocks.

Question 64:

• WAEC 2005

(a) Define the term weed (b) Describe four methods of weed control. (c) Give six reasons for controlling weeds on the farm.

Question 65:

• WAEC 2005

(a) List five aims of crop improvement (b) Define the term selection in crop improvement. (c) List three methods of selection. (d) Explain the following genetic terms: (i) homozygotes (ii) back cross (iii) dominance.