GRADE 11 NOVEMBER 2015 AGRICULTURAL … SENIOR CERTIFICATE GRADE 11 NOVEMBER 2015 AGRICULTURAL SCIENCES P2 MARKS: 150 TIME: 2½ hours This question paper consists of 16 pages

NATIONAL SENIOR CERTIFICATE

GRADE 11

NOVEMBER 2015

AGRICULTURAL SCIENCES P2

MARKS: 150 TIME: 2½ hours

This question paper consists of 16 pages.

2 AGRICULTURAL SCIENCES P2 (EC/NOVEMBER 2015)

Copyright reserved Please turn over

INSTRUCTIONS AND INFORMATION 1. Answer ALL the questions in the ANSWER BOOK. 2. Start EACH question on a NEW page. 3. Read ALL the questions correctly and answer only what is asked. 4. Number the answers correctly according to the numbering system used in

this question paper.

5. A non-programmable calculator may be used. 6. Show ALL your calculations, including units and formula, where

applicable.

7. Write neatly and legibly.

(EC/NOVEMBER 2015) AGRICULTURAL SCIENCES P2 3


SECTION A QUESTION 1 1.1 Various options are given as possible answers to the following questions.

Choose the answer and write only the letter (A–D) next to the question number (1.1.1–1.1.10) in the ANSWER BOOK, for example 1.1.11 D.

1.1.1 One of the by-products of photosynthesis is oxygen, which is

released through the ... of leaves into the atmosphere. A mesophyll B stomata C chloroplast D cuticles 1.1.2 A soil cultivation system in which soil crumbs are broken down into

smaller particles, using implements such as rakes over small areas to make the soil flat and level for new planting is called ...

A harrowing. B mulching. C discing. D bare cultivation. 1.1.3 Plants suffering from phosphorus deficiency: (i) Have poor flowering, seeding, fruiting and poor yields (ii) Become stunted with thin, spindy stems (iii) Older foliage turn almost black with reddish or purple tints (iv) Die if shoots occur Choose the correct combination: A (i), (ii) and (iii) B (ii), (iii) and (iv) C (ii), (iii) and (v) D (i), (ii) and (iv)



1.1.4 Factors essential for germination of plants in hydroponics are … A soil, carbon dioxide, light and favourable temperature. B clay soil, humus, water and light. C water, oxygen, favourable temperature and light. D organic fertiliser, dark soil, agricultural lime and water. 1.1.5 Root rot disease in vegetable crops is caused by … A nitrogen deficiency. B fumigation of crops. C high iron concentration in the soil. D over irrigation or flooding. 1.1.6 Fruits that develop or come from flowers with many ovaries are ... A fleshy, simple fruits. B indehiscent, dry fruits. C acccessory fruits. D compound fruits. 1.1.7 … refers to the breaking or scratching of the seed coat to break

dormancy. A Ablactation B Scarification C Germination D Pollination 1.1.8 An irrigation system that directs water to flow through narrow

channels between rows of crops instead of distributing water evenly on the whole field.

A Sprinkler irrigation B Furrow irrigation C Drip irrigation D Aerial irrigation



1.1.9 The diagram of the plant below is an example of propagation through ...

A bulb. B rhizome. C corm. D runners. 1.1.10 The seasonal climatic changes in South Africa limit aquatic farmers’

choice in breeding all species of fish. This could be because… A of flooding and drought during summer and winter

respectively. B farmers are lazy to work with water during winter. C of fluctuations in water temperatures. D many plants wilt in winter and so feed becomes scarce.

(10 x 2) (20)



1.2 Choose a word/term/concept/phrase from COLUMN B that best matches a description in COLUMN A. Write only the letter (A–H) next to the question number (1.2.1–1.2.5) in the ANSWER BOOK, for example 1.2.6 I.

COLUMN A COLUMN B 1.2.1 ablactation A soilless technique for growing

plants 1.2.2 biotechnology B long lasting effect on soil 1.2.3 pistil C septum and anther 1.2.4 phloem D water and dissolved nutrients

transport from roots to leaves 1.2.5 organic fertilisers E falling of flowers and fruits after

pollination F scientific technique to modify

organisms G stigma, style and ovary H nutrient transport to all parts of

plant. (5 x 2) (10) 1.3 Write the agricultural term/phrase for each of the following descriptions next

to the question number (1.3.1–1.3.5) in the ANSWER BOOK. 1.3.1 Organisms that transmit diseases or parasites from plant to plant 1.3.2 The middle fleshy part of the fruit that we usually eat 1.3.3 Stems that grow at the soil surface or just below ground, which form

adventitious roots at the nodes, and new plants from the buds 1.3.4 An instrument used by farmers to measure the moisture content of

the soil directly or how hard the plant is working to extract water from the soil

1.3.5 The artificial removal of excess water from the root zone of a plant in

the soil (5 x 2) (10)



1.4 Change the UNDERLINED WORD(S) in each of the following statements to make them TRUE. Write only the answer next to the question number (1.4.1–1.4.5) in the ANSWER BOOK.

1.4.1 Active transport Is the spontaneous movement of molecules from a

region of higher concentration, to a region of lower concentration. 1.4.2 Chemical control involves using species-specific insects or other

invertebrates and diseases, in order to control weeds. 1.4.3 In flood irrigation, water is applied slowly and exactly in the form of

single drops, streams or in the form of a drizzle. 1.4.4 A production system whereby plants are cultivated in a nutritive

solution with or without artificial growth mediums for mechanical support, is called aquaculture.

1.4.5 Calyx is the sterile colourful leaves of the flower that attracts animals,

to assist with pollination. . (5 x 1) (5) TOTAL SECTION A: 45



SECTION B Start this question on a NEW page. QUESTION 2: PLANT NUTRITION 2.1 The storage organ is a part of a plant which is modified to store or retain

carbohydrates or water. Most storage organs are often found below ground level where they are protected.

2.1.1 Supply THREE parts of a plant modified as storage organs. (3) 2.1.2 Indicate ONE chemical process that result in the formation and

storage of carbohydrates in plants. (1) 2.1.3 State TWO requirements for the process indicated in

QUESTION 2.1 (2) 2.1.4 Identify ONE product of the process indicated in QUESTION 2.1.1

that is stored in plants. (1) 2.2 The movement of water from the roots to the stems and leaves is very

important. Water contains much-needed mineral nutrients. In this way the nutrients are transported to the different organs of the plant. Some of the processes take place through osmosis and diffusion.

2.2.1 Deduce THREE factors that influence the upward movement of

water in plants. (3) 2.2.2 Summarise the role played by xylem vessels in the upward

movement of water in plants. (2) 2.2.3 List TWO functions of water in plants. (2) 2.2.4 Distinguish between osmosis and diffusion. (4)



2.3 The following plant nutrient deficiency symptoms occur in some vegetable crops:

(a) Growth of whole plant is stunted and restricted. (b) Leaf margins and ends become brown and necrotic (c) Poor leaf and root development 2.3.1 Match the mineral elements in the table that show the deficiency

symptoms mentioned in QUESTION 2.3. Sulphur

Calcium Nitrogen

Potassium (3) 2.4 A farmer bought two different bags of compound fertilisers. One fertiliser

bag (Bag A) was labelled 8:1:3(30). The second fertiliser bag (Bag B) was labelled 1:2:7.(28). The farmer intends to cultivate leafy vegetables such as lettuce and spinarch.

2.4.1 Recommend the fertiliser bag that could provide better yield for the

leafy crops for the farmer. (1) 2.4.2 Justify with TWO reasons, your choice of the fertiliser bag in

QUESTION 2.4.1. (2) 2.4.3 State the implications of the figure “30” in the brackets on Bag A

8:1:3(30) in QUESTION 2.4. (2) 2.5 Four Grade 11 learners conducted a research on the performance of

different organic fertilisers on the yield of maize on two hectares of land. The results in yield of the research is as follows:

Manure Yield in bags Compost 35 Green manure 30 Farm manure 45 House hold heaps 25 2.5.1 Represent the research findings in a bar graph and give an

appropriate heading to your graph. (5) 2.6 Outline the differences between active ion uptake and passive ion uptake of

nutrients in plants. (4) [35]



QUESTION 3: PLANT REPRODUCTION Start this question on a NEW page. 3.1 A farmer used three planting seasons for a plant breeding process. After the

first breeding season the plant yielded one small cob. After the second breeding season the size of the cob became bigger with many seeds. After the third breeding season there were two big cobs on one plant as shown in the photo below.

3.1.1 Deduce the breeding process in 3.1. (1) 3.1.2 Justify your answer in QUESTION 3.1.1 with ONE reason by

comparing the yields of the maize. (2) 3.1.3 State TWO advantages of the process in QUESTION 3.1.1. (2)



3.2 The sketch below is a dicotyledonous flower.

3.2.1 Identify the parts labelled 9, 3 and 4. (3) 3.2.2 Describe the major function of the part numbered 5. (1) 3.2.3 Predict THREE climatic conditions that could lead to the shedding of

flowers from a fruit tree. (3) 3.3 Farmers use different methods of plant propagation on their farms. Two of the

propagation methods are shown in the illustrations below.

3.3.1 Identify the propagation methods in FIGURE A and FIGURE B. (2) 3.3.2 Recommend THREE reasons to convince emerging farmers to

practice the methods in QUESTION 3.3. (3)



3.4 The information in the table below indicates disease-causing organisms. Bacteria

Fungi Viruses Vectors

Select the micro-organism that best match with the information with the

descriptions in QUESTION 3.4.1. 3.4.1 (a) The smallest infectious organisms that cause diseases (b) Sap sucking insects (c) It causes abnormal growth such as galls (d) Cause most plant diseases (4) 3.4.2 Recommend THREE measures to prevent the spread of the

organisms in QUESTION 3.4.1 in plants. (3) 3.5 Plant breeding involves the development of new plant varieties for cultivation

and use by humans. This is done through the genetic variation of plants which may be done naturally, or artificially. Some of the methods include selection, hybridisation, gene mutations or through genetic modification of plants. Genetic modification has resulted in the production of BT (Bacillus thuringeinsis) crops to boost export.

3.5.1 Explain the underline concept in QUESTION 3.5. (2) 3.5.2 State THREE advantages of gene mutation in plant breeding. (3) 3.5.3 Mention TWO important Bt (Bacillus thuringeinsis) crops in South

Africa. (2) 3.5.4 Identify a breeding system in the scenario that can be both natural

and artificial. (1) 3.6 Formulate THREE reasons why farmers should control weeds on their farms. (3) [35]



Start this question on a NEW page. QUESTION 4: OPTIMAL RESOURCES 4.1 A modern farming system makes use of computers, global satellite

positioning systems and remote sensing devices to measure the correct environmental conditions and to determine if crops are growing at maximum efficiency. The farming system also uses hi-tech applications such as GPS (Geographic Positioning System) and GIS (Geographic Information System) to identify all possible factors that could have influence on production.

4.1.1 Identify the farming system in the scenario in 4.1. (1) 4.1.2 Justify with TWO reasons the use of computers, remote sensing

devices and global satellites from the scenario in 4.1. (2) 4.1.3 Explain why the following ultra-modern technologies are installed on

tractors in precision farming. (a) Geographic Positioning System (GPS) (1) (b) Geographic Information System (GIS) (1)



4.2 In the diagram below, rain water forms runoff that moves into streams. The streams join bigger rivers and the bigger rivers join the seas or lakes. Farmers could dam some of the water sources for flood irrigation.

4.2.1 Determine the best water source for sustainable irrigation from the

illustration in 4.2. (1) 4.2.2 Identify ONE water source that is not good for irrigation. (1) 4.2.3 Give TWO criteria to determine water quality for irrigation. (2) 4.2.4 Mention ONE example of flood irrigation. (1)



4.3 Some local farmers use open drains to reclaim agricultural land. Commercial farmers often use other drainage systems on their land. The sketches below represent drainage systems used by some farmers to reclaim agricultural land.

4.3.1 Identify the drainage layouts labelled A and B in QUESTION 4.3. (2) 4.3.2 Recommend TWO factors to consider before installing a pipe drain

system. (2) 4.3.2 List TWO disadvantages of open drains on a farm. (2) 4.4 Plant nutrient uptake and disease control in monoculture and crop rotation

are not the same. Supply the most appropriate differences to complete the table in QUESTION 4.4.1.

4.4.1 Differences Aspect Monoculture Crop rotation Plant nutrient uptake (a) (b) Diseases control (c) (d) (4)



4.5 Differentiate between primary and secondary soil cultivation/tillage. (4) 4.6 Aquaculture is the controlled production of aquatic living organisms. It may

be practiced in the sea or in fresh water. Regular stocking, feeding and protection from predators, forms part of the good management practices to increase production.

4.6.1 Identify TWO aquaculture management practices from the scenario

that could increase production in aquaculture industry. (2) 4.6.2 List TWO common species of aquaculture breeds stocked in South

Africa. (2) 4.6.3 Describe the open-through flow system of aquaculture to a

prospective farmer. (2) 4.7

4.7.1 Identify the structure in QUESTION 4.7. (1) 4.7.2 Recommend TWO environmental factors to consider when

selecting an area to erect the structure in 4.7 for production. (2) 4.7.3 Suggest TWO materials that can be used for the outer covering of

a greenhouse in 4.7. (2) [35] TOTAL SECTION B: 105 GRAND TOTAL: 150

NATIONAL SENIOR CERTIFICATE

GRADE 11

NOVEMBER 2015

AGRICULTURAL SCIENCES P2 MEMORANDUM

MARKS: 150

This memorandum consists of 10 pages.



SECTION A QUESTION 1.1 QUESTION 1.2 1.1.1 B √√ 1.2.1 E √√ 1.1.2 A √√ 1.2.2 F √√ 1.1.3 A √√ 1.2.3 G √√ 1.1.4 C √√ 1.2.4 H √√ 1.1.5 D √√ 1.2.5 B √√ (5 x 2) (10) 1.1.6 D √√ 1.1.7 B √√ 1.1.8 B √√ 1.1.9 D √√ 1.1.10 C √√

(10 x 2) (20) QUESTION 1.3 QUESTION 1.4

1.3.1 Vectors √√ 1.4.1 diffusion √

1.3.2 Mesocarp √√ 1.4.2 biological control √

1.3.3 Stolons √√ 1.4.3 micro/drip irrigation √

1.3.4 Tensiometer √√ 1.4.4 hydroponics √

1.3.5 Soil drainage √√ 1.4.5 corolla √

(5 x 2) (10) (5 x 1) (5)

TOTAL SECTION A: 45



SECTION B QUESTION 2: PLANT NUTRITION 2.1 2.1.1 Storage organs in plants

x Roots √ x Stem √ x Leaves √ x Tubers √ x Fruits/seeds/nuts √ (Any 3 x 1) (3)

2.1.2 Chemical process

Photosynthesis √ (1) 2.1.3 Requirements of the chemical process

x Radiant/solar energy/sunlight √ x Sufficient carbon dioxide √ x Water √ x Chlorophyll pigment √ x Ideal temperature √ (Any 2 x 1) (2)

2.1.4 Main product of the process stored in storage organs

x Sugars/carbohydrates/organic food substances √ (1) 2.2 2.2.1 Factors that influence upward water movement

x Root pressure √ x Capillarity √ x Adhesion and cohesion √ (3 x 1) (3)

2.2.2 The role played by xylem in water movement

Water moves along xylem vessel √ to replace water lost via transpiration. √ (2)

2.2.3 Functions of water in plants

x Water transports nutrients from the soil to the roots and to the leaves. √

x Water transports the products of photosynthesis from the leaves to the plant organs for storage. √

x Water provides structural support to plants. √ x Water regulates plant temperature. √ x Water provides the medium for metabolic processes such as

photosynthesis and respiration. √ (Any 2 x 1) (2)



2.2.4 Osmosis It is a process where water molecules move from a high water potential to a low water potential √ through a differentially permeable membrane. √ (2) Diffusion It is the spontaneous movement of molecules from a region of high concentration to a region of low concentration, √ until it reaches a dynamic equilibrium. √ (2) (4)

2.3 2.3.1 a = nitrogen √

b = potassium √ c = calcium √ (3)

2.4 2.4.1 Fertiliser that could provide better yield

x Fertiliser bag A/The first fertiliser bag √ (1) 2.4.2 Justification for fertiliser bag A

x The proportion/percentage of nitrogen in Bag A (8) is greater than the proportion of nitrogen in Bag B (1). √

x Leafy vegetables require more nitrogen for vegetative growth. √ (2) 2.4.3 Implications of (30) on the bag

The figure 30 indicates the percentage mass of the fertiliser √ that actually contains the elements. √

OR 30 indicates the total amount of nutrients √ in 100 kg of the mixture. √

OR 30 indicates that the fertiliser contains a 30% mixture √ of N.PK. √ (2)



2.5 2.5.1 The performance of different organic fertilisers on the yield of maize.

Bar graph √ 1 Correct heading √ 1 Correct plotting/proportional plotting √ 1 Labelling and units on Y-axis √ 1 Labelling and units on X-axis √ 1 (5)

2.6 Active ion uptake

x It is the movement of nutrients against a concentration gradient/from a low to high concentration. √

x It is brought about by carrier molecule which is present in the cell membrane. √

x It requires metabolic energy/energy provided by ATP and a suitable enzyme. √ (Any 2 x 1)

(4)

Passive ion uptake x Ions move from a higher to a lower concentration. √ x It does not need energy from metabolic reactions / ATP is not involved. √ x It occurs outside the casparian strip in the cortex. √ (Any 2 x 1)

[35]

0

5

10

15

20

25

30

35

40

45

50

compost green manure farm manure house hold heaps



QUESTION 3: PLANT REPRODUCTION 3.1 3.1.1 Breeding process

x Hybridisation √ (1) 3.1.2 Justification of the process

FIGURE 2 shows better yield √ than FIGURE 1. √ OR

FIGURE 3 shows better yield √ than FIGURE 1 and FIGURE 2. √ (2) 3.1.3 Advantages of hybridisation

x Hybridisation creates varieties that produce more yield. √ x Hybridisation produce plants that grow faster/better. √ x Hybridisation produces plants that are more resistant to pests

and diseases. √ x Hybridisation produces plants that are resistant to cold and heat /

unfavourable weather. √ (Any 2 x 1) (2) 3.2 3.2.1 Parts of a flower

9 = ovum √ 3 = stigma √ 4 = ovary √ (3)

3.2.2 Function of flower stalk

x It is the flower stalk that holds/supports the flower/fruit in place. √ x The flower stalk conducts water and nutrients from the plant to

the flower. √ (Any 1 x 1) (1) 3.2.3 Climatic conditions leading to ablactation

x Low temperatures inhibits the germination of pollen and thus fruit setting. √

x Frost damage flowers. √ x Rain moisturises pollen and makes it not to disperse. √ x Strong winds blow away insects from pollinating the trees. √

(Any 3 x 1) (3) 3.3 3.3.1 Methods of propagation

FIGURE A – Grafting √ FIGURE B – Cutting √ (2)

3.3.2 Reasons to practice vegetative propagation

x Plants that do not produce seeds or viable seeds like roses can only be propagated by grafting or budding. √

x Plants propagated by budding or grafting are true to type. √ x It is very quick/easier/cheaper to propagate through cuttings. √ x Plants propagated by cutting and grafting, produce flowers/fruits

faster. √ (Any 3 x 1) (3)



3.4 3.4.1 Disease causing organisms (a) Viruses √ (b) Vectors √ (c) Fungi √ (d) Bacteria √ (4) 3.4.2 Preventative measures for the spread of plant diseases

x Use registered certified disease-free seed or other propagation material. √

x Disinfect pruning tools to prevent disease causing organisms from infecting plants through wounds. √

x Select cultivars that are resistant to bacterial diseases. √ x Practice crop rotation using crops that are not susceptible to

diseases. √ x Fumigate storage places and greenhouses. √ (Any 3 x 1) (3)

3.5 3.5.1 Selection

It is the process in which environmental or genetic influences that will determine if an organisms √ thrive better than others as a factor of evolution. √ (2)

3.5.2 Advantages of gene mutation

x It provides breeding material for conventional plant breeding. √ x It contributes to the conservation and use of plant genetic

resources. √ x It contributes to food security. √ x It provides additional income to farmers. √ x Desirable traits such as disease-resistance can be induced. √ x Plants can be muted to bear more fruits, flowers and seeds to

increase production √ (Any 3 x 1) (3) 3.5.3 Two important Bt crops in South Africa

x Bt Maize √ x Bt Cotton √ (2)

3.5.4 A natural or artificial breeding method

x Selection √ (1) 3.6 Reason why farmers should control weeds

x Weeds compete with crops for moisture/space/nutrients and light. √ x Weeds interfere with the harvesting of crops. √ x Weeds serve as host plants for insects and pests. √ x Weeds that are thorny pose health hazards to other plants and animals. √

(Any 3 x 1) (3) [35]



QUESTION 4: ANIMAL REPRODUCTION 4.1 4.1.1 Farming system

Precision farming √ (1) 4.1.2 Reasons for the use of computers and global satellites

x To measure the correct environmental conditions. √ x To determine if crops are growing at maximum efficiency. √ (2)

4.1.3 (a) Geographic Positioning System (GPS)

To determine a precise position on the globe. √ (1) (b) Geographic Information System

Computers capture, manage and analyse special data related to crop productivity and field inputs. / It makes sense of all the available data. √ (1)

4.2 4.2.1 Best water source for sustainable irrigation

x Rivers/bigger rivers √ (1) 4.2.2 Water source not good for irrigation

x Sea water √ (1) 4.2.3 Criteria to determine water quality for irrigation

x The salinity of the water because if plants absorb too much salt it affects crop yield/saline water is toxic to plants. √

x Determine specific electrical conductivity of water/the more salts dissolved, the higher the specific electrical conductivity. √

x Determine sodicity/sodium adsorption ratio/higher amounts of sodium ions (na+) has detrimental effects on both soil and plants. √

x Determine toxic ions such as chloride and lithium. √ (Any 2 x 1) (2) 4.2.4 Example of flood irrigation

x Basin/border irrigation √ x Furrow irrigation √ x Bed irrigation √ (Any 1 x 1) (1)



4.3 4.3.1 Drainage layouts A – Parallel/grid drainage system √ B – Herringbone drainage system √ (2)

4.3.2 Factors to consider before installing pipe drain system

x Soil information √ x Wetland impact √ x Economic feasibility regarding installation costs √ x Present and future cropping strategies. √ x Environmental impacts associated with drainage discharge. √ x Easements and right of way to avoid any potential conflict. √ x Spacing of drains √ x Pipe diameter √ x Drain slope or gradient √ x Layout of drains √ (Any 2 x 1) (2)

4.3.2 Disadvantages of open drains

x High maintenance cost of cleaning or removing fallen material. √ x Ditches may serve as breeding ground for weeds and insect

pests. √ x Restricts accessibility of vehicles. √ x Some field operations cannot be done freely using heavy farm

machinery. √ (Any 2 x 1) (2) 4.4 4.4.1 Difference in aspects of monoculture and crop rotation Monoculture Crop rotation (a)

The same crop is planted each year/The plants take the same mineral nutrients from the soil each year. √

(b) Different crops are planted each year. The plants will take different nutrients from the soil each year. √

(c) Diseases and pests settle in the soil and will be very hard to remove. √

(d) Disease and pests are easier to control because the diseases and pests of one crop may not affect other crops. √ (4)

4.5 (a) Primary soil tillage/cultivation It involves the first intensive operation, √ which cut, turn and shatter the

soil with relatively deep penetrating implements. √ (2) (b) Secondary cultivation/tillage It comes after primary tillage. / It involves seedbed finishing

operations √ such as pulverising, levelling, firming the top soil, weed control, destroying soil crust and ridging. √ (2) (4)



4.6 4.6.1 Managerial practices x Regular stocking √ x Feeding √ x Protection from predators √ (Any 2 x 1) (2)

4.6.2 Common species stocked in South Africa

x Bluefish/shad/elf √ x Trout √ x Abalone √ x Seaweed √ x Oysters √ x African catfish √ x Prawns √ x Mussels √ x Tilapia √ (Any 2 x 1) (2)

4.6.3 Open-through flow system

An open through flow system allows water to pass through the system once before it is discharged √ and can be used in indoor tanks, if there is an abundant and continuous supply of good quality water. √ (2)

4.7 4.7.1 Greenhouse √ (1) 4.7.2 Environmental factors to consider

x Morning sunlight in the east √ x Slope / well drained land √ x Source of water supply √ x Electricity supply √ x Accessibility by trucks and other vehicles √ x Consider the direction of storm water √ x Temperature √ x Plant diseases and pests √ (Any 2 x 1) (2)

4.7.3 Materials for greenhouse

x Transparent / micron plastic / polyethylene √ x Shade nettings / cloth √ x Glass √ (2)

[35] TOTAL SECTION B: 105 GRAND TOTAL: 150

Documents

GRADE 11 NOVEMBER 2015 AGRICULTURAL … SENIOR CERTIFICATE GRADE 11 NOVEMBER 2015 AGRICULTURAL SCIENCES P2 MARKS: 150 TIME: 2½ hours This question paper consists of 16 pages