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ZIMSEC O Level · 4001/1 · N2022

Agriculture Paper 1 November 2022

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
Existence of many different kinds of plants and animals in an environment is called
  1. Ahabitat.
  2. Becology.
  3. Cecosystem.
  4. Dbiodiversity.

Question 2

Natural Resources And Conservation
Identify a dangerous animal
  1. Ahyena
  2. Bbaboon
  3. Cmonkey
  4. Dquelea birds

Question 3

Natural Resources And Conservation
Select a problem animal.
  1. Alion
  2. Beagle
  3. Cbaboon
  4. Delephant

Question 4

Farm Management And Economics
Identify the importance of physical farm planning.
  1. Aminimise soil loses on arable land.
  2. Bto reduce degradation of the land.
  3. Censure maximum returns to the land user.
  4. Denables farmers to achieve their goals in an organised and efficient way.

Question 5

Farming Systems
Rainfall effectiveness is
  1. Athe total amount of rain that falls in an area.
  2. Brainfall available as soil moisture for crop growth.
  3. Crainfall which is well spread throughout the growing season.
  4. Dused to determine whether the cropping season is good or bad.

Question 6

Natural Resources And Conservation
An effect of deforestation is the
  1. Aindiscriminate logging of soils
  2. Bdisturbance of the eco-balance
  3. Cclearing of land for housing.
  4. Dthe establishment of reserved forest areas

Question 7

Natural Resources And Conservation
Select one effect of water pollution
  1. Anutrient contamination
  2. Bdisruption of food chains
  3. Cleakage of sewage pipes
  4. Daccumulation of dirt on soil surface

Question 8

Plant Nutrition And Fertilisers
Which form of nitrogen is usable by plants?
  1. Aammonium compounds
  2. Bnitrogen gas
  3. Cnitrates
  4. Dnitrites

Question 9

Soil Science
The structure of clay soils can be improved by
  1. Aadding lime.
  2. Badding anthill soil.
  3. Cadding ammonium nitrate fertiliser.
  4. Dusing raised beds to lower the water table

Question 10

Plant Nutrition And Fertilisers
The difference between straight fertilisers and compound fertilisers is that
  1. Astraight fertilisers contain one major plant nutrient whilst compound fertilisers contain trace elements only.
  2. Bcompound fertilisers have trace elements only where as straight fertilisers contain two or more major plant nutrients.
  3. Ccompound fertilisers have two or more major plant nutrients and a few trace nutrients whereas straight fertilisers contain one major plant nutrient.
  4. Dcompound fertilisers have one major plant nutrient whilst straight fertilisers have two or more plant nutrients.

Question 11

Soil Science
An experiment was carried out on a wet soil through making shapes and the soil formed a ribbon. Name the type of soil.
  1. Aclay soil
  2. Bsandy soil
  3. Cloam soil
  4. Dsilty soil

Question 12

Soil Science
The textural class that has a high percentage of clay is
  1. Asandy clay.
  2. Bloamy sand.
  3. Csandy loam.
  4. Dclay loam.

Question 13

Crop Production
Identify requirements for seed germination.
  1. Awater, carbon dioxide and optimal temperature
  2. Bwater ,carbon dioxide and high temperature
  3. Cwater, oxygen and optimal temperature
  4. Dwater, oxygen and high temperature

Question 14

Plant Structure And Growth

Use the diagram to answer questions 14 and 15

Identify the part labelled (I)

  1. Axylem
  2. Bphloem
  3. Ccortex
  4. Dpith

Question 15

Plant Structure And Growth
What is the function of the part labelled iii?
  1. Asupport stem
  2. Btransport water
  3. Ctransport nutrients
  4. Dforms vascular tissue

Question 16

Plant Structure And Growth

The diagram shows a cross-section through a dicotyledonous leaf. Use the diagram to answer questions 16 and 17.

Identify the main leaf cells responsible for photosynthesis.

  1. AB
  2. BC
  3. CD
  4. DA

Question 17

Plant Structure And Growth
Identify the cells labelled B
  1. Aspongy mesophyll
  2. Bpalisade layer
  3. Cepidermis
  4. Dguard cells

Question 18

Plant Structure And Growth
Growth of plants is due to the process of
  1. Amitosis.
  2. Bmeiosis.
  3. Cgermination.
  4. Ddifferentiation.

Question 19

Plant Breeding And Propagation
Open pollinated plants are obtained through
  1. Aselective pollination.
  2. Brestricted fertilisation.
  3. Ccontrolled pollination.
  4. Duncontrolled pollination.

Question 20

Plant Breeding And Propagation
A hybrid is
  1. Aa big crop.
  2. Bmixed crop.
  3. Can organism from different species.
  4. Dan organisms with improved performance.

Question 21

Livestock Production
The importance of crossbreeding livestock is to
  1. Acontrol livestock population.
  2. Bproduce livestock with high food intake.
  3. Cproduce livestock with improved performance.
  4. Dproduce offspring with uniform growth.

Question 22

Livestock Production
The live mass of a small livestock is 75 kg. The animal loses 25% of its body weight when dressed. Calculate its carcass mass.
  1. A17.25kgs
  2. B56.25kgs
  3. C58.75kgs
  4. D75kgs

Question 23

Poultry Production

The diagram shows the structure of an egg. Use the diagram to answer questions 23 and 24.

Identify a part which is responsible for gaseous exchange for the growing chick.

  1. AC
  2. BA
  3. CD
  4. DB

Question 24

Poultry Production
During egg formation the part labelled D is formed in the
  1. Ainfundibulum
  2. Bisthmus
  3. Cmagnum
  4. Dovary

Question 25

Plant Breeding And Propagation
Select a statement that describes meiosis.
  1. Aproduce gametes with half the number of chromosomes
  2. Bproduce gametes with complete set of chromosomes
  3. Ccell division that forms new cells for growth
  4. Dproduce gametes with similar genes

Question 26

Animal Health
What is the use of antihelminth in agriculture?
  1. Ato control ticks
  2. Bto control bacterium
  3. Cto control internal worms
  4. Dto control nematodes

Question 27

Crop Production
Tillage is the
  1. Ause of animals in the field.
  2. Bpreparation of soil for planting purposes.
  3. Cestablishment of crops in the field
  4. Dburying of debris in the soil

Question 28

Farm Structures And Machinery
Which one is a primary tillage implement?
  1. Aridger
  2. Bplanter
  3. Charrow
  4. Dplough

Question 29

Farm Structures And Machinery
Fencing is done to
  1. Amark boundaries.
  2. Bmake use of unwanted trees.
  3. Cmeasure farm boundaries.
  4. Dutilise bushes and shrubs.

Question 30

Farm Structures And Machinery
Which of these harnesses is suited to a donkey?
  1. Adouble neck yoke
  2. Bbreast band
  3. Cneck harness
  4. Dsingle yoke

Question 31

Farm Structures And Machinery
Which factor is considered when siting a farm road?
  1. Alength of the road
  2. Bequipment needed
  3. Cdistance
  4. Dtopography

Question 32

Farm Structures And Machinery
The deadman anchor takes its name from
  1. Atype of wood used.
  2. Bdead materials used.
  3. Cburied rocks supporting the wire.
  4. Dthe dead inventor.

Question 33

Farm Structures And Machinery
What is the importance of gravel on farm roads?
  1. Amakes the road less slippery
  2. Bmakes the road beautiful
  3. Chelps in drainage
  4. Dprotects tyres

Question 34

Farm Management And Economics
The demand of agricultural produce is influenced by
  1. Apopulation.
  2. Bclimate.
  3. Cimproved technology
  4. Dsupply of raw materials

Question 35

Farm Management And Economics

The table shows a type of record. Use the table to answer questions 35 and 36.

Name the type of record.

  1. Alabour record
  2. Bcrop record
  3. Cinventory record
  4. Dfinancial record

Question 36

Farm Management And Economics
Calculate the number of spades that are no longer in use.
  1. A65
  2. B0
  3. C48
  4. D43

Question 37

Farm Management And Economics
____________ determines the level of productivity.
  1. AOpportunity cost
  2. BDecision making
  3. CProfit and loss
  4. DLaw of diminishing returns

Question 38

Farm Management And Economics
Which production record is shown in the table?
  1. Afinancial record
  2. Bfarm record
  3. Cinventory record
  4. Dcrop production record

Question 39

Farm Management And Economics
Breakeven is
  1. Awhen income and expenditure are equal.
  2. Bwhen expenses are greater than agro-sales.
  3. Cwhen income is greater than expenditure.
  4. Dwhen income is less than expenditure.

Question 40

Farm Management And Economics
Money that goes out of the farm is
  1. Aloss.
  2. Bprofit.
  3. Cincome.
  4. Dexpenditure.

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