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ZIMSEC O Level · 4001/1 · N2024

Agriculture Paper 1 November 2024

Questions
39 of 40
Time allowed
60 min
Syllabus code
4001/1

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Questions
39
Pass mark
24
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Answer every question in the printed order, get marked at the end, then see the answers.

The questions

Question 1

Natural Resources And Conservation
International convention assist in wildlife management by
  1. Aallowing trading of all animal products.
  2. Bpromoting the hunting of wild animals.
  3. Cfacilitating trading of both plants and animals.
  4. Dsetting laws and policy framework.

Question 2

Farming Systems
The practice of growing crops and rearing animals for sale is called
  1. Asubsistence farming.
  2. Bcommercial farming.
  3. Ccommunal farming.
  4. Dshifting farming.

Question 3

Natural Resources And Conservation
An ecological importance of forests is the
  1. Aprovision of food.
  2. Bcreation of employment.
  3. Cprevention of soil erosion.
  4. Dindication of soil characteristics.

Question 4

Soil And Water Conservation
Tied ridges in arable land can be maintained by
  1. Amulching.
  2. Bremoving silt.
  3. Cdraining the pot holes.
  4. Dapplying organic manures.

Question 5

Crop Production

1 kg gum seed is sown in 1 000 pockets.

Calculate number of pockets required for 2 1/4 kgs.

  1. A1 000
  2. B2 200
  3. C2 250
  4. D2 500

Question 6

Crop Production
Calculate plant population of a tree plantation measuring 1 ha using a spacing of 2,5 m x 2,5 m.
  1. A4000
  2. B1600
  3. C2500
  4. D1000

Question 7

Water And Irrigation
Permission to use water for agricultural purpose is called
  1. AWater Authority.
  2. BWater Right.
  3. CZINWA Act.
  4. DWater Act.

Question 8

Soil Science
Soil water that is absorbed direct from atmospheric vapour is called
  1. Afield capacity.
  2. Bcapillary water.
  3. Chygroscopic water.
  4. Dgravitational water.

Question 9

Soil Science
Maize growing in waterlogged soils wilt due to shortage of
  1. Aoxygen.
  2. Bcalcium.
  3. Cphosphorus.
  4. Dcarbon dioxide.

Question 10

Soil Science
Which soil forming factor influences the chemical composition of the soil?
  1. AParent rock
  2. BOrganisms
  3. CClimate
  4. DSlope

Question 11

Crop Production
Fifty seeds weighing 30 grams were soaked overnight in water and weighed 48 grams the following day. Calculate the percentage of water imbibed?.
  1. A18
  2. B37,5
  3. C60
  4. D96

Question 12

Plant Nutrition And Fertilisers

The diagram illustrates the nitrogen cycle. Study the diagram and answer questions 12 and 13.

Identify the process labelled A.

  1. Anitrification
  2. Bdecomposition
  3. Cdenitrification
  4. Dnitrogen fixation

Question 13

Plant Nutrition And Fertilisers
Which process A, B, C or D is denitrification?
  1. AD
  2. BC
  3. CB
  4. DA

Question 14

Soil Science
A farmer who faces challenges of seed germination needs to destroy soil
  1. Apans.
  2. Bcaps.
  3. Cprofile.
  4. Dstructure.

Question 15

Plant Breeding And Propagation
What type of variety is progeny XY, if two pure maize breeds X and Y are the parents?
  1. Amonohybrid
  2. Btrihybrid
  3. Ctop cross
  4. Dhybrid

Question 16

Water And Irrigation
The major disadvantage of borehole water as a source of irrigation is serious built up of
  1. Afungal diseases.
  2. Bsilts in the soil.
  3. Cstorage pests.
  4. Dnitrates.

Question 17

Plant Structure And Growth
The process of weak stems clinging onto other plants for support is
  1. Ahaptotropism.
  2. Bhydrotropism.
  3. Cchemotropism.
  4. Dgeotropism.

Question 18

Plant Nutrition And Fertilisers
Why are farmers encouraged to apply lime soon after harvesting their crops?
  1. AAllows time for lime to react with soil.
  2. BControls perennial weeds.
  3. CConserves soil moisture.
  4. DControls soil pests.

Question 19

Plant Nutrition And Fertilisers
How much nitrogen is supplied by 700 kg of Compound D, if the NPK values are 7:14:7?
  1. A49 kg
  2. B98 kg
  3. C49.5 kg
  4. D449 kg

Question 20

Plant Structure And Growth
In a stem, which part is responsible for the transportation of nutrients up the plant?
  1. Axylem
  2. Bphloem
  3. Cpith
  4. Dcortex

Question 21

Animal Nutrition
The maintenance ration of an empty doe is 100 g per day and the requirement for a pregnant doe is 25% more. Calculate the production ration for the doe.
  1. A25g
  2. B100g
  3. C125g
  4. D2500g

Question 22

Animal Nutrition
Formulate a ration that contains 10% crude protein using a mixture of maize grain having 6.5% crude protein and cotton seed having 17% crude protein.
  1. A2:1
  2. B1:2
  3. C4:1
  4. D1:4

Question 23

Livestock Production
The live mass of a small livestock is 2,5 kgs. The animal losses 23% of its body weight when dressed. Calculate its carcass mass
  1. A0.575kgs
  2. B1.925kgs
  3. C2.35kgs
  4. D2.52kgs

Question 24

Crop Protection
How many grammes of pesticide are required to mix with 15 litres of water, if the rate of dilution is 1 kg to 500 litres?
  1. A20 g
  2. B45 g
  3. C30 g
  4. D50 g

Question 25

Poultry Production
Which part of the egg serves as a food reserve and protective layer for the developing embryo?
  1. Aegg shell
  2. Balbumen
  3. Cchalaza
  4. Dyolk

Question 26

Poultry Production
Antibiotics in poultry production are mostly used to treat
  1. Aprotozoan diseases.
  2. Binfectious diseases.
  3. Cbacterial diseases.
  4. Dviral diseases.

Question 27

Poultry Production
From the following list of chemicals, which one is used for treating poultry against diseases?
  1. Adimethoate
  2. Bterramycin
  3. Cacaricides
  4. Daldrin

Question 28

Animal Nutrition
Concentrates are mixed with maize meal to
  1. Adecrease digestibility of food.
  2. Bincrease concentration of salts.
  3. Creduce concentration of salts.
  4. Dincrease digestibility of food.

Question 29

Livestock Production
What is the cause of initial low food consumption for fattened steers?
  1. AAnimals are not used to the new feed.
  2. BThe animals refuse to be penned.
  3. CAnimals are now too crowded.
  4. DAnimals are given rotten feed.

Question 30

Farm Structures And Machinery
A characteristic of plants or shrubs used as hedge is
  1. Aprone to drought.
  2. Bsingle stemmed.
  3. Cvery poisonous to animals.
  4. Dfast growth and establishment.

Question 31

Farm Structures And Machinery
Which type of fence is used in game parks?
  1. Adiamond mesh wire
  2. Bbarbed wire
  3. Clive wire
  4. Dplain wire

Question 32

Farm Structures And Machinery
Which method of timber treatment lasts longer?
  1. Aapplication of used oil
  2. Bcoating with paint
  3. Cuse of creasote
  4. Ddeluging

Question 33

Farm Structures And Machinery
Which one is a maintenance requirement for shellers?
  1. Abrushing bearings
  2. Bpainting bearings
  3. Cgreasing bearings
  4. Dwashing bearings

Question 34

Farm Structures And Machinery
Farm roads should be cambered to
  1. Aadd beauty.
  2. Bmaintain gradient.
  3. Creduce slipperiness.
  4. Dmaintain surface drainage.

Question 35

Farm Structures And Machinery

The diagram shows a mouldboard plough.

Identify the part which is greased regularly.

  1. AA
  2. BB
  3. CC
  4. DD

Question 36

Farm Management And Economics

The table shows a gross margin budget for a maize enterprise (1 ha) yielding 5 t/ha. Study the table and answer questions 36 and 37.

Calculate gross margin for the maize enterprise.

  1. A$440
  2. B$910
  3. C$1300
  4. D$2210

Question 38

Farm Management And Economics
Which factor influences farmer's choice of an enterprise?
  1. Aincome of consumers
  2. Btaste and preference
  3. Cavailability
  4. Dseason

Question 39

Farm Management And Economics

The information pertains to a partial budget.

Gains: New income $3000, Cost saved 400,Total400, Total 3400.
Losses: Income lost $700, New costs 250,Total250, Total 450.

Calculate net gain

  1. A$2950
  2. B$3850
  3. C$7550
  4. D$7555

Question 40

Farm Management And Economics
Which statement best describes a partial budget?
  1. Atotal income from sales
  2. Btotal gross margin for all farming enterprise
  3. Cintroducing a minor change in any line of farm production
  4. Dan estimate of total income and expenditure for a single enterprise

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