The diagram below illustrates a spring tined cultivator or harrow

(a) For what type of farm operation is the implement used?
(b) Name the implement used:
(i) before the spring tined harrow is required;
(ii) after its operation.
(c) Explain how the vertical stalk helps the tine to overcome the obstruction.
(d) State five maintenance methods for the implement
(e) After the cultivator has worked on the soil, what changes will occur in the following:
(i) soil structure
(ii) soil texture

The diagram illustrates a pH scale.
(a) Comment on the pH status of a sample of soil as indicated by the reading of the pointer.
(b) State three factors responsible for alkalinity in the soil.
(c) Mention three factors responsible for acidity in the soil
(d) State two corrective measures of removing alkalinity in the soil.
(e) List five liming materials.
Study the weed plants illustrated by the diagrams below and use them to answer the following questions;

(a) ldentify the weeds, illustrated as I, Il, Ill, and IV by their common and botanical names.
(b)(i) State the agents of dispersal of the seeds / fruits of weeds represented by diagrams l and III.
(ii) Describe one characteristic of the seeds which aid the dispersal of the weeds illustrated by diagram I and llI
(c) Name the parts labelled A to H.
(d) Give three reasons why the weed represented by diagram IV is Difficult to Control.
The diagram below illustrates the reproductive system of a cow

(a) Name the parts labelled A to J in the diagram
(b) Give the gestation period (in days) of the following animals
(i) Cow
(ii) Sow
(iii) Ewe
(iv) Rabbit (doe)
(c) Describe briefly three methods of management care in ensuring the survival of a newborn calf
Study the diagram below and use it to answer Questions (a) - (d)

(a) ldentify the farm implement illustrated by diagram above
(b) Describe briefly how the farm implement operates.
(c)(i) Name the part labelled A - D in the diagram
(d) State three ways of maintaining the farm implement.