Agricultural Science JAMB, WAEC, NECO AND NABTEB Official Past Questions

(a) (i) identify specimen M.

Specimen M;

(ii) Draw and label specimen M.

(b) Explain the role of each of the parts of specimen M you have labeled in carrying out its function.

(a) Identify each specimen G, H, I, and K.

Specimen G;                  Specimen H;             Specimen I;             Specimen K;

(b) Name two uses of each of specimens G and H.

(c) Name the group of crops to which each of specimens H, I, and K belong.

(d) Describe the planting operations for specimen G

(e) Name two pests of specimen H.

(a) Name three other equipment that can perform similar functions as specimen F.

(b) State five safety precautions to be taken when using specimen F.

(c) Describe how specimen F is used

(d) State three faults that may develop in specimen F when in use.

(a) (i) Classify specimens B and D according to their mode of formation.
(ii) Name two other rocks for each mode of formation.

(b) Given three differences between specimens B and D.

(c) State three uses of specimen D in agriculture.

(d) State five disadvantages of an abundance of specimen D on a farmland.

(a) State seven objectives of agricultural extension. (b) List the three main types of extension teaching methods and explain any two of them

State three advantages and one disadvantages of each of the following marketing agents (i) retailers (ii) Wholesalers (iii) co-operative societies.  

(a) State seven characteristic features of a good layer. (b) Describe the preparations to be carried out for receiving day old chicks for rearing. (b) Explain how poor storage facilities affect agricultural marketing.

(a) Give four reasons for rearing goats in West Africa. (b) List three advantages and three disadvantages of the extensive system of rearing goats in West African. (c) State six general characteristics of West African cattle breeds.

(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.

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

(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.

(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

 (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. 

(a) State three advantages and two disadvantages of manual labour. (b) Enumerate four qualities of good draught animals. (c) State two precautions to be observed when using draught animals. (d) Explain how power from each of the following sources are harnessed for use on the farm: (i) sun, (ii) biogas.

The most inappropriate means of disseminating new ideas and techniques to the peasant farmer is by use of

Which marketing agent normally makes the biggest profit margin per unit? The

The main aim of preparing a farm income and expenditure statement is to

Farm insurance schemes do not cover losses due to

The supply of farm produce to markets in West Africa is mostly dictated by

In areas where labour is scarce and land is abundant, farmers tend to

Heterosis in animal breeding is referred to as