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ZIMSEC O Level · 5034/1 · N2016

Agriculture Paper 1 November 2016

Questions
37
Time allowed
60 min
Syllabus code
5034/1

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Questions
37
Pass mark
23
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Answer every question in the printed order, get marked at the end, then see the answers.

The questions

Question 1

Land Use And Farming Systems
The major factor used in dividing Zimbabwe into Agro-ecological zones is
  1. Atemperature.
  2. Brainfall.
  3. Cwind.
  4. Dhumidity.

Question 2

Land Use And Farming Systems
In which of the following regions is specialised and diversified farming practised?
  1. ARegion I
  2. BRegion II
  3. CRegion III
  4. DRegion IV

Question 3

Forestry
In Zimbabwe the best time for harvesting gumtrees is in
  1. AOctober and November.
  2. BJanuary and February.
  3. CApril and May.
  4. DJuly and August.

Question 4

Land Use And Farming Systems
Which of the following farming systems is common in Zimbabwe's communal areas?
  1. Aintensive farming
  2. Bcommercial farming
  3. Crotational farming
  4. Dmixed farming

Question 5

Land Use And Farming Systems
An area received 700 mm of rainfall during the season but the farmers experienced drought. This was due to
  1. Aintensity of rainfall.
  2. Bdistribution of rainfall.
  3. Cless effectiveness of rainfall.
  4. Dreliability of rainfall.

Question 6

Agricultural Extension
How does information concerning the release of a new crop variety flow?
  1. AResearch station to Farmers to Extension workers
  2. BExtension workers to Research Station to Farmers
  3. CResearch Station to Extension workers to Farmers
  4. DFarmers to Research stations to Extension workers

Question 7

Soils
A soil sample was tested and it was found to be at pH 10,0. This means the soil is
  1. Aalkaline.
  2. Bfertile.
  3. Cacidic.
  4. Dneutral.

Question 8

Soils
Terracing as a method of controlling erosion is suitable in
  1. Ahigh rainfall areas.
  2. Blow rainfall areas.
  3. Csteep slopes.
  4. Dgentle slopes.

Question 9

Natural Resources And Conservation
Which is the most important factor that influences the type of wild animals that can live in a given habitat?
  1. Aabsence of predators in the area
  2. Bprotection from predators
  3. Cquantity of vegetation that can be consumed
  4. Dabsence of other species that compete for the same resources

Question 10

Natural Resources And Conservation
Autotrophs are organisms that are able to manufacture their own food. Which is the correct list of autotrophs?
  1. Amoss, algae and fungi
  2. Bbacteria, moss and fungi
  3. Cbacteria, algae and moss on rocks
  4. Dalgae, moss and microscopic plants in water

Question 11

Crop Protection
A triangular pesticide label written very dangerous poison, is further indicated by a triangle coloured
  1. Aamber.
  2. Bgreen.
  3. Cpurple.
  4. Dred.

Question 12

Farm Structures
The correct set of tools for fence construction is
  1. Ahammer, wire strainer, pair of pliers.
  2. Bwire strainer, pair of pliers, pair of secateurs.
  3. Chammer, pair of secateurs, pair of pliers.
  4. Dhammer, wire strainer, pair of secateurs.

Question 13

Soils
Fig. 1 is an experiment to demonstrate the water holding capacity of three different soils. From the results, soil samples I, II and III are most likely to be
  1. AI clay, II loam, III sand
  2. BI loam, II clay, III sand
  3. CI sand, II clay, III loam
  4. DI loam, II sand, III clay

Question 14

Natural Resources And Conservation
What is land degradation?
  1. Acutting down of trees
  2. Buncontrolled erosion on land
  3. Closs of soil productivity
  4. Ddecline of organic matter in the soil

Question 15

Soils
Why are storm drains constructed in arable lands?
  1. Ato divert water from roads to water ways
  2. Bto divert water from flowing into fields
  3. Cto divert water into dams and rivers
  4. Dto divert water into tied ridges

Question 16

Soils
Which of the following methods would be most appropriate in controlling gully erosion?
  1. Afilling with thorn bushes
  2. Bplanting grass and trees
  3. Cconstructing contour ridges
  4. Dfencing off the gully

Question 17

Soils
Which type of soil water is responsible for leaching of plant nutrients?
  1. Aavailable water
  2. Bcapillary water
  3. Cgravitational water
  4. Dhydroscopic water

Question 18

Soils
Which layers of the soil profile contain nutrients and plant roots?
  1. Ahorizon A and B
  2. Bhorizon B and C
  3. Chorizon C and D
  4. Dhorizon D and A

Question 19

Crop Production
Fig. 2 shows methods of propagation. Which of the methods labelled A, B, C or D would be used to propagate cassava?
  1. AA
  2. BB
  3. CC
  4. DD

Question 20

Plant Science
Which of the following is a characteristic of an insect pollinated flower?
  1. Astigma hangs out
  2. Banthers hang out
  3. Csticky stigma
  4. Dsmall petals

Question 21

Crop Protection
Which of the following is a list of broad leaved weeds?
  1. Apigweed, purple nutsedge, upright starbur
  2. Bpurple nutsedge, pigweed, blackjack
  3. Cupright starbur, pigweed, blackjack
  4. Dwandering jew, pigweed, blackjack

Question 22

Plant Science
Fig. 3 shows the structure of a root. What is the function of the zone marked (ii)?
  1. Aprotection and absorption
  2. Bgrowth and development
  3. Celongation and differentiation
  4. Dmaturation and cell division

Question 23

Crop Production
The maize population in a field was counted and the farmer got 33 300 plants. This figure represented 90% germination capacity. Calculate the seed-rate the farmer used.
  1. A36 000 seeds
  2. B37 000 seeds
  3. C38 000 seeds
  4. D39 000 seeds

Question 24

Crop Protection
Which of the following list is a correct complete example of pests?
  1. AAphids, earthworms and birds
  2. BTicks, rats and weeds
  3. CRound worms, rhizobum bacteria and bees
  4. DArmyworm, weevils and ladybird

Question 25

Crop Protection
Fumigants are mostly used to control
  1. Aeelworms and weevils.
  2. Bcutworms and aphids.
  3. Cgrasshoppers and locusts.
  4. Dmaize stalkborer and cottonborer.

Question 26

Plant Science
Fig 4 is a diagram illustrating a potato chip placed in a beaker of a strong salt solution. After two hours the potato chip was removed from the salt solution. Choose the best option which describes the condition of the chip.
  1. Apotato chip lost its water into the salt solution
  2. Bpotato chip remained unchanged
  3. Cpotato chip got bigger by absorbing salt solution
  4. Dpotato chip gained water from the salt solution

Question 27

Plant Science
From the information in Fig. 4, identify a term which best describes the experiment.
  1. Aosmosis
  2. Bplasmolysis
  3. Ctranslocation
  4. Dtranspiration

Question 28

Crop Protection
Which method is recommended to effectively prevent diseases caused by viruses?
  1. Aspraying fungicides
  2. Bremoving affected plants
  3. Ccontrolling the vectors
  4. Dpractising crop rotation

Question 29

Animal Production
In a bull, where are sperms and sex hormones produced?
  1. Aepididymis
  2. Bpenis
  3. Cscrotum
  4. Dtestes

Question 30

Plant Science
Which graph labelled A, B, C or D closely represents the relationship between the rate of photosynthesis and light intensity?
  1. AA
  2. BB
  3. CC
  4. DD

Question 31

Animal Production
Which of the following is a characteristic of roughages?
  1. Athey are high in energy content
  2. Bthey are fine and have low fibre content
  3. Cthey are low in energy and protein
  4. Dthey have a low fibre content

Question 32

Animal Health
Antibiotics are effective against diseases caused by
  1. Abacteria.
  2. Bfungus.
  3. Cnematodes.
  4. Dprotozoa.

Question 33

Animal Health
Two week old broiler chicks lack vitamin D in their diet. Which deficiency disease is likely to affect the birds?
  1. Aanaemia
  2. Bpica
  3. Cpneumonia
  4. Drickets

Question 34

Animal Production
A small-scale farmer raised a batch of 1 000 day old broiler chicks for sale with a 5% mortality rate. Calculate the number of birds which grew to maturity.
  1. A650
  2. B750
  3. C850
  4. D950

Question 35

Farm Mechanisation
Which method is appropriate for harnessing cows?
  1. Abreast bands
  2. Bdouble neck yoke
  3. Csaddle harnesses
  4. Dcollar harness

Question 36

Farm Structures
Wooden fencing posts are treated with creosote to protect them against
  1. Aanimals and fire.
  2. Brotting and fire.
  3. Crusting and rotting.
  4. Dtermites and rotting.

Question 37

Farm Structures
When siting a farm road, which pair of factors should be taken into consideration?
  1. Atopography and farm operation
  2. Bfarm operations and number of people on the farm
  3. Ctopography and material used to construct the road
  4. Dtype of road and the carrying capacity of the farm

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