ZIMSEC O-Level Agriculture Paper 1 Mid Year 2016 Question Paper

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Ordinary Level

**AGRICULTURE**

PAPER 1 Multiple Choice

FORM 4 MID YEAR 2016

1 hour

Additional materials:

Multiple choice answer sheet,

Soft clean eraser,

Soft pencil (B or HB is recommended).

TIME 1 hour

INSTRUCTIONS TO CANDIDATES

Do not open this question paper until you are told to do so.

Write your name, Centre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you.

There are forty questions in this paper. Answer all questions. For each question there are four possible answers, \(\boldsymbol{A}, \mathbf{B}, \mathbf{C}\) and \(\mathbf{D}\). Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.

Read very carefully the instructions on the answer sheet.

INFORMATION FOR CANDIDATES

Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this question paper.

This question paper consists of 12 printed pages.

Question 1

Land tenure in Zimbabwe deals with

A commercial use of land.

B subsistence farming of land.

C ownership and control of land.

D distribution and allocation of land.

Question 2

Why should farmers practise crop rotation?

A to control weeds and promote leaching

B to add fertility and improve food security

C to reduce soil erosion and improve crop quality

D to control diseases and promote drought resistance in crops

Question 3

Which of the soil constituents has the lowest proportion?

A air

B water

C inorganic matter

D organic matter

Question 4

Which soil type can be rolled into threads and moulded into any shape?

A clay soil

B loam soil

C sandy loam

D sandy soil

Question 5

Which of the following is a group of igneous rocks?

A granite, dolerite and basalt

B sandstone, shale and dolerite

C limestone, basalt and shale

D gneiss, shale and granite

Question 6

Which food web is correct?

producer ⟶ herbivores

omnivores

producer

Question 7

A good structured soil should provide good

A aeration, root penetration and growth.

B root penetration, water movement and particle spacing.

C water movement, aeration and root penetration.

D particle spacing, aeration and growth.

Question 8

The graphs show the rainfall and temperature of two places \(\mathbf{P}\) and \(\mathbf{Q}\). Use the information to answer questions 8 and 9.

\(Q\) is most likely to be located in Natural Farming region

A 1.

B 3.

C 4.

D 5.

Question 9

Which agricultural activities would you advise farmers in area \(\mathbf{P}\) to practise?

A maize, cotton and tobacco production

B deciduous fruits, forestry and intensive beef and dairy production

C drought resistant crops and ranching

D irrigation of sugarcane, wheat and ranching

Question 10

A farmer is growing tomatoes using drip irrigation.

Which method of fertiliser application would you advise the farmer to use?

A banding

B broadcasting

C fertigation

D drilling

Question 11

The diagram shows a water cycle.

What processes are represented by I, II and III.

| | I | II | III | | :--- | :--- | :--- | :--- | | A | condensation | evaporation | precipitation | | B | precipitation | condensation | evaporation | | C | precipitation | evaporation | condensation | | D | condensation | precipitation | evaporation |

Question 12

The following are effects of pollution on the environment:

(i) destruction of aquatic habitat

(ii) formation of acid rain

(iii) lead to poisoning

(iv) increasing water treatment cost

Which effects are caused by agricultural activities?

A (i) and (ii)

B (ii) and (iii)

C (i) and (iv)

D (iii) and (iv)

Question 13

Why is it recommended to water seedlings in the morning and evening?

A seedlings absorb moisture faster

B there is less moisture loss

C there is more moisture loss

D seedlings grow faster

Question 14

The diagrams show stages in budding as a method of plant propagation.

Which diagram shows the first operation done on the root stock?

Question 15

Which is the most important factor to consider when selecting a maize cultivar to grow?

A length of the rain season

B the average temperature

C price of maize at the market

D the type of soil

Question 16

Which practices are most effective in controlling extreme temperatures in crops?

A promoting healthy plants and mulching

B applying organic manures and irrigation

C improving soil drainage and shading

D irrigating crops and mulching

Question 17

Which is the main factor to be considered in determining the method to control soil erosion?

A type of soil

B slope of the land

C type of crops to be grown

D amount of rainfall

Question 18

Which row correctly matches the functions of the plant tissues?

Question 19

Why do some plants die when subjected to waterlogged conditions?

A There is too much water.

B There are too many salts.

C There is no air for respiration.

D There are no nutrients in the water.

Question 20

The diagram shows the Nitrogen cycle.

Use the information to answer questions 20 and 21.

Which number represents nitrification?

A 3

B 5

C 6

D 8

Question 21

Which process is represented by number 1?

A nitrogen fixation

B denitrification

C absorption

D ammonification

Question 22

Which process constitutes chemical weathering of rocks?

A hydrolysis, abrasion and solution

B hydrolysis, carbonation and solution

C exfoliation, carbonation and solution

D exfoliation, carbonation and abrasion

Question 23

Nematicides are chemicals used to control

A aphids.

B eel worms.

C mealy bugs.

D red spider mites.

Question 24

Which implements are suitable for primary tillage in land preparation?

A disc harrow and spike harrow

B mould plough and chisel plough