(vi) Which parasites can be controlled by drenching? A Ticks and fleas B Tsetse flies and mites C Houseflies and lice D Ringworm and ascaries E Tape worms and liver flukes

Match the functions of surveying instruments in List A with the names of the instruments in List B by writing the letter of the correct response beside the item number in the answer booklet provided. List A (i) An instrument used to mark temporary stations when surveying. (ii) An instrument used to align survey lines on the ground. (iii) An instrument used to indicate a vertical position of a point. (iv) An instrument used together with level to measure the vertical distances above the reference place. (v) An instrument used to uphold levels. List B A. Plumb bob B. Odometer C. Arrow D. Tripod E. Ranging pole F. Abney level G. Leveling staff

1. An instrument used to mark temporary stations when surveying. (1 mk)
2. An instrument used to align survey lines on the ground. (1 mk)
3. An instrument used to indicate a vertical position of a point. (1 mk)
4. An instrument used together with level to measure the vertical distances above the reference place. (1 mk)
5. An instrument used to uphold levels. (1 mk)

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When planning land to be used for various activities, land survey cannot be excluded. (a) State five objectives of land survey. (b) Briefly explain the function of any five instruments used in chaining/taping.

1. State five objectives of land survey. (5 mk)
2. Briefly explain the function of any five instruments used in chaining/taping. (5 mk)

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Briefly explain the behavior which will be shown by the chicks in the brooder house under the following temperature conditions: (i) Too hot (ii) Too cold (iii) Air droughts (iv) Right temperature Why is it advantageous to keep poultry using free range system? Give six points.

1. Briefly explain the behavior which will be shown by the chicks in the brooder house under the following temperature conditions: (i) Too hot (ii) Too cold (iii) Air droughts (iv) Right temperature (4 mk)
2. Why is it advantageous to keep poultry using free range system? Give six points. (6 mk)

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Describe five ways on how agricultural wastes and human activities contribute to water pollution. What measures should be taken to overcome the problem described in (5) (a).

1. Describe five ways on how agricultural wastes and human activities contribute to water pollution. (5 mk)
2. What measures should be taken to overcome the problem described in (5) (a). (5 mk)

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(a) (i) No one country is self-sufficient in producing all that it needs. Justify this statement. (ii) Why is trade across borders of a country important? Give three reasons. (b) Propose four measures that a country can take to correct deficit in the balance of payment.

1. No one country is self-sufficient in producing all that it needs. Justify this statement. (1 mk)
2. Why is trade across borders of a country important? Give three reasons. (3 mk)
3. Propose four measures that a country can take to correct deficit in the balance of payment. (6 mk)

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(a) Account for any three agents of erosion. (3 marks) (b) Construction of terraces is among of the physical/structural control of soil erosion in sloping areas. Briefly explain seven types of terraces that can be constructed on sloping areas for erosion control. (7 marks)

1. Account for any three agents of erosion. (3 mk)
2. Construction of terraces is among of the physical/structural control of soil erosion in sloping areas. Briefly explain seven types of terraces that can be constructed on sloping areas for erosion control. (7 mk)

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A moist soil sample weighed 100 g. After oven dry the weight dropped to 90 g. Suppose the total volume of the soil sample is 80 cm3 and the volume of pore space is 40 cm3, calculate: (a) the bulk density of the soil. (b) the particle density of the soil. (c) the porosity of the soil. (10 marks)

1. the bulk density of the soil. (0 mk)
2. the particle density of the soil. (0 mk)
3. the porosity of the soil. (0 mk)

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A farmer grew irish potato on his farm. Few weeks later a farmer noticed that the plants were not performing well, hence invited an extension officer for advice. During the visit an extension officer observed the following symptoms: ● Wilting of the vegetative parts; ● Tuber of the infected plants producing white juice when cut and squeezed. (a) (i) What disease could be affecting the crop? (1 mark) (ii) How the disease spreads in the field? (1 mark) (b) Educate farmers on the possible ways of controlling the disease identified in (a) (i). Give four points. (8 marks)

1. What disease could be affecting the crop? (1 mk)
2. How the disease spreads in the field? (1 mk)
3. Educate farmers on the possible ways of controlling the disease identified in (a) (i). Give four points. (8 mk)

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Farmers experience the rise and fall of the prices of their produce. As an agricultural extension expert, explain three causes of price changes and advice five ways of protecting agricultural products from such changes. (15 marks)

1. Advice five ways of protecting agricultural products from such changes. (0 mk)

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A farmer keeping broilers experienced the habit of feather pecking from the birds. As a veterinary expert, advice on how to control such habit. Give six points. (15 marks)

1. Advice on how to control such habit. Give six points. (15 mk)

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