ZIMSEC O-Level Agriculture Paper 1 Question Paper

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Ordinary Level

**AGRICULTURE**

PAPER 1

4001/1 1 hour

**SPECIMEN PAPER**

INSTRUCTIONS TO CANDIDATES

1. Read all the instructions carefully. 2. Do not open this booklet until you are told to do so by the invigilator. 3. Use only an HB pencil for all entries on the answer sheet. 4. When you are told to start, choose one correct answer from the suggested answers and shade it very dark as shown in the examples at the top of the answer sheet. 5. If you wish to change your answer, erase it completely with a rubber and then shade the new choice. 6. If more than one lozenge is shaded for any one answer, that answer will be regarded as wrong. 7. Answer all the questions on the separate answer sheet provided.

INFORMATION FOR CANDIDATES

Each question carries one mark

Question 1

Which factor contributes most to population increase in Zimbabwe?

A high birth rate

B migration

C immigration

D high death rate

Question 2

Choose a producer in an ecosystem from the list.

A grazers

B plants

C browsers

D omnivores

Question 3

Choose a disaster that affects tomato production from the list.

A frost

B veld fires

C hailstorm

D cyclone

Question 4

Select a method used for harvesting timber.

A deluging

B seasoning

C clear cutting

D sap displacement

Question 5

Conflicts between wildlife and humans can be minimised by

A killing wild animals.

B avoid growing crops.

C fencing of the field.

D clearing of the land.

Question 6

Choose the role of the government of Zimbabwe in wildlife management.

A training members of the community as scouts and professional hunters

B enforcing by-laws which protect endangered species

C revenue collection for sustaining the government

D monitoring wildlife

Question 7

Water quality is affected by

A agricultural chemicals.

B volume of available water.

C atmospheric pressure.

D sources of water.

Question 8

Rain water is harvested by

A roofs and gutters.

B aquifers and minimum tillage wells.

C springs and intercropping.

D wells and crop rotation.

Question 9

Which type of rock is formed as a result of cooling and solidification of molten lava?

A metamorphic

B sedimentary

C igneous

D limestone

Question 10

Soil temperature is influenced by

A water in the soil and micro-organisms.

B organic matter and infiltration.

C colour of soil and amount of solar radiation.

D dark soil and amount of solar radiation.

Question 11

What are the possible causes of water pollution?

A animal waste and canals

B gold panning and fertiliser deposits

C agriculture chemicals and ponds

D aquifers and gold panning activities

Question 12

Contour ridges and storm drains are constructed to

A reduce soil erosion and improve drainage.

B reduce runoff and increase infiltration.

C divert water to the field.

D increase seepage and soil erosion.

Question 13

Distinguish between non-mineral essential elements and secondary elements.

| | Non-mineral elements | Secondary elements | | :--- | :--- | :--- | | A | derived from the air and water | applied as soil amendments | | B | required in small quantities | required in large quantities | | C | required in relatively large amounts by plants | found in commercial fertilisers | | D | Required for normal plant growth | needed to give rise to a pale green colour |

Question 14

In which organelle does aerobic respiration occur?

A nucleus

B lysosome

C mitochondria

D endoplasmic

Question 15

Determine the amount of water required to mix \(150 ~ g\) of Malathion \(25 \% ~ WP\), in the school garden, if \(20 ~ g\) is required for every \(10\) litres of water.

A 10 litres

B 37.5 litres

C 75 litres

D 170 litres

Question 16

What is the advantage of silos in Zimbabwe?

A acts as a drier for harvested maize

B cheap and easy to construct

C large volumes of grain are stored

D easy to inspect

Question 17

Which vector transmits maize streak virus?

A aphids

B beetles

C scales

D leaf hoppers

Question 18

Where is synthesized food stored in a cereal crop?

A grain

B root

C stem

D tassel

Question 19

Agro-chemicals are safely stored in a

A kitchen.

B corner of the garden.

C securely locked storeroom.

D closed bucket.

Question 20

Mulching is important because it

A increases the need for frequent watering.

B prevents seed germination completely.

C removes nutrients from the soil.

D helps retain moisture and suppresses weeds.

Question 21

A plant that is poisonous to farm animals is

A lantana camara.

B black jack.

C sabi morning glory.

D couch grass.

Question 22

Adlib feeding differs from ration feeding, in that

A animals are fed twice a day.

B animals are fed thrice a day.

C food is available all the time.

D animals are given commercial feeds.

Question 23

The function of Vitamin E in farm animals is for

A good eye sight.

B normal growth.

C blood clotting.

D fertility.

Question 24

The process of removing animals with undesirable characteristics is called

A isolation.

B quarantining.

C slaughtering.

D culling.

Question 25

What is the purpose of stunning when slaughtering rabbits?

A improves blood circulation

B avoids loss of blood

C kills the rabbit

D minimises pain

Question 26

When a calf gets antibodies from colostrum it is called

A natural acquired passive immunity.

B natural acquired active immunity.

C artificial acquired passive immunity.

D artificial acquired active immunity.

Question 27

Why is nail clipping necessary in rabbits?

A makes them look clean

B prevents injuries when fighting

C prevents disease transmission

D prevents them from burrowing holes

Question 28

What materials are used to make harnesses?

A leather and rubber

B wood and metal

C rubber and metal

D leather and wood

Question 29

What is placed between straining posts to avoid wagging of the wire strands?

A droppers

B rails

C standards