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ZIMSEC O Level · 4001/1 · N2020

Agriculture Paper 1 November 2020

Questions
40
Time allowed
60 min
Syllabus code
4001/1

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Questions
40
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
The term fauna in wildlife refers to
  1. Aplants.
  2. Bwater.
  3. Canimals.
  4. Dreserves.

Question 2

Soils
Placement of inorganic fertiliser inside a shallow hole beside the plant is called
  1. Abanding.
  2. Bdolloping.
  3. Chill placement.
  4. Dbroadcasting.

Question 3

Natural Resources And Conservation
Which group of crops are grown in natural farming region IV?
  1. Aforestry, tea and coffee
  2. Btobacco, maize and cotton
  3. Cmaize, cotton and groundnuts
  4. Dsorghum, millet and rapoko

Question 4

Natural Resources And Conservation
Human and wildlife conflicts result from
  1. Areduced contact between humans and wild animals.
  2. Bpeople collecting wild fruits for selling in urban areas.
  3. Cexpansion of human population into natural habitats.
  4. Dthe existence of wild animals into game reserves.

Question 5

Soils
The peeling off of rock particles during physical weathering is
  1. Asolution.
  2. Bcarbonation.
  3. Choof action.
  4. Dexfoliation.

Question 6

Natural Resources And Conservation
Why is sequential arrangement of agroforestry components most preferred than simultaneous arrangement?
  1. Atrees are harvested before establishing a crop
  2. Bboth trees and crops are established together
  3. Cboadering trees are used as wind breaks
  4. Dcrops are undersown within trees

Question 7

Soils
Identify a water conservation technique.
  1. Acontour ridging
  2. Bstorm drain
  3. Cpotholing
  4. Dopen ditch

Question 8

Soils
Which soil fraction has a soapy feel when rubbed between fingers?
  1. Asilt
  2. Bclay
  3. Csand
  4. Dgravel

Question 9

Crop Production
The recommended seed rate for a legume is 90 kg per hectare. Calculate the area in hectares that would be covered by 360 kg.
  1. A4
  2. B6
  3. C8
  4. D10

Question 10

Genetics And Breeding
A double hybrid is a product of crossing
  1. Atwo single hybrids.
  2. Btop cross and single hybrid.
  3. Csingle hybrid and an inbred line.
  4. Dsingle hybrid and three way hybrid.

Question 11

Genetics And Breeding
Heterosis in plant breeding is ability of an offspring to
  1. Aperform better than its siblings
  2. Bbe superior than the mother plant.
  3. Cperform better than both of its parents.
  4. Dmaintain the same level of production with the parent stock.

Question 12

Plant Science
Select the by products of aerobic respiration.
  1. Acarbon dioxide and water
  2. Balcohol and carbon dioxide
  3. Calcohol and water
  4. DEnergy and water

Question 13

Plant Science
Which plant nutrient stimulates root, shoot, flower and seed development?
  1. Anitrogen
  2. Bpotassium
  3. Cphosphorus
  4. Dmagnesium

Question 14

Plant Science
_______ is when a leaf changes colour to yellow.
  1. ANecrosis
  2. BChlorosis
  3. CPhotolysis
  4. DPigmentation

Question 15

Crop Production
The growing of vegetables, fruits and ornamental plants is
  1. Aapiculture.
  2. Bfloriculture.
  3. Chorticulture.
  4. Dacquaculture.

Question 16

Plant Science
The parts of a flower that develop into a fruit and seed after fertilisation are
  1. Aovary and ovule.
  2. Bstigma and anther.
  3. Covule and stigma.
  4. Danther and ovary.

Question 17

Plant Science
The response to touch by plants is
  1. Aphototropism.
  2. Bhaptotropism.
  3. Cgeotropism.
  4. Dhydrotropism.

Question 18

Animal Production
Which one is an indigenous breed of cattle?
  1. Ashorthorn
  2. Bhereford
  3. Csussex
  4. Dtuli

Question 19

Animal Production
Which is the appropriate method of controlling bottle jaw in a cow?
  1. Adosing
  2. Bdipping
  3. Cspraying
  4. Dvaccinating

Question 20

Animal Production
Which vitamin is responsible for good eye sight in livestock?
  1. Avitamin A
  2. Bvitamin B
  3. Cvitamin C
  4. Dvitamin D

Question 21

Animal Production
Why is the outbreak of a notifiable disease reported to authorities?
  1. APolice will vaccinate the animals.
  2. BNotifiable disease have a low mortality.
  3. CVeterinary officers will put up a road block.
  4. DNotifiable disease spread very fast and are fatal.

Question 22

Genetics And Breeding
A genetic constitution of an individual describes
  1. Aphenotype.
  2. Binheritance.
  3. Cgenotype.
  4. Depistasis.

Question 23

Soils
The disadvantage of open ditches as a method of surface water drainage is
  1. Adirty water is removed.
  2. Bclean water is removed.
  3. Cthe removal of water on the soil surface.
  4. Dinterference with movement of machinery.

Question 24

Crop Production
Select an importance of irrigation on crop production.
  1. AGrowing crops during the rainy season.
  2. BLengthening the growing season.
  3. CLeaching salts from the soil.
  4. DImproving height of crops.

Question 25

Farm Mechanisation
Which one is a daily implement maintenance procedure?
  1. Acheck bolts and nuts for wearing
  2. Btightening lose nuts and bolts
  3. Crepaint the implement
  4. Dstrip the implement

Question 26

Farm Structures
Calculate the cost of buying 1 000 bricks at 4 cents per brick.
  1. A$25,00
  2. B$40,00
  3. C$400,00
  4. D$4 000,00

Question 27

Farm Structures
Identify an anchor type in which a wire is used for straining.
  1. Awire and wooden strut anchor
  2. Bhigh gate anchor
  3. Cdouble anchor
  4. Dstay anchor

Question 28

Farm Structures
What is the use of droppers on a barbed wire fence?
  1. Amaintain equal distance between standards
  2. Bmaintain the distance between strands
  3. Ckeep straining posts in the soil
  4. Dincrease life span of the fence

Question 29

Farm Structures
How many rolls of barbed wire does the farmer require to fence a field measuring 900 m x 500 m with 5 strands of barbed wire, if one roll of barbed wire covers 400 m?
  1. A35
  2. B30
  3. C20
  4. D17

Question 30

Farm Mechanisation
Donkeys are harnessed using breast bands because
  1. Atheir power of pulling is on the breast.
  2. Bdonkeys use their backs to carry certain loads.
  3. Cthere are no specific sizes of yokes for donkeys.
  4. Done donkey can pull the implement without any challenges.

Question 31

Farm Structures
Wooden fencing posts are treated with creosote in order to
  1. Aattract termites.
  2. Bprevents rusting.
  3. Cprevent rotting.
  4. Dpromote rotting.

Question 32

Farm Structures
Which building material is fire resistant?
  1. Awood
  2. Bplastic
  3. Cconcrete
  4. Dthatch

Question 33

Farm Structures
Why are stones not widely used as farm building material in Zimbabwe?
  1. AIt is too cheap.
  2. BStones are not durable.
  3. CStones cannot be used with any bonding material.
  4. DNot easy to get in large quantities in some areas.

Question 34

Farm Economics
Which factor does not affect marketing of agricultural produce?
  1. Alabour
  2. Bcapital
  3. Cbudget
  4. Dtransport

Question 35

Farm Economics
Costs allocated to the whole farm enterprises and do not easily change with the volume of production are
  1. Abudgets.
  2. Bfixed costs.
  3. Cgross margins.
  4. Dvariable costs.

Question 36

Farm Economics
Select an aspect of controlled marketing.
  1. Amarketing of specified commodities.
  2. Bfarmers sell commodities to markets
  3. Cmarkets can be formal or informal
  4. Dprices are not pre-determined

Question 37

Farm Economics
A cooperative where members sell produce as a group and benefit from discounts on bulk transportation is called
  1. Aproduction cooperative.
  2. Bbuying cooperative.
  3. Cbanking cooperative.
  4. Dmarketing cooperative.

Question 38

Farm Economics
Most demand curves slope
  1. Aupwards from left to right.
  2. Bhorizontally from left to right.
  3. Cvertically from top to bottom.
  4. Ddownwards from left to right.

Question 39

Farm Economics
Calculate a farmer's gross margin if $6 000,00 was raised from pig sales and total fixed costs were $2 500,00 while total variable costs were $2 800,00.
  1. A$700,00.
  2. B$3 200,00.
  3. C$3 500,00.
  4. D$5 300,00.

Question 40

Farm Economics
Evaluate the influence of HIV and AIDS on agriculture production.
  1. AImproved standards of living.
  2. BBeef production is increased.
  3. CReduced death rates.
  4. DReduced labour.

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