Free CXC Agricultural Science Paper 2 May/June 2021 past paper from 2021. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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CSEC Agricultural Science Paper 2 May/June 2021 - Free CXC Past Paper with Answers
Free CXC Agricultural Science Paper 2 May/June 2021 past paper from 2021. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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Every question from this paper as text. See the answers and worked solutions. Questions are the property of the Caribbean Examinations Council; Caribbean AI is not affiliated with CXC.
Explain the difference between 'fixed cost' and 'variable cost'.
[2 marks]
Define the term 'partial budget'.
[1 mark]
Farmer Khalil operates a two-acre vegetable farm. He wants to expand his farm to 9 acres but is not sure if he should operate a mixed farm, or grow only vegetables. Table 1 shows the budget information for a mixed farm and a vegetable farm, which Farmer Khalil needs to decide on in order to expand his farm.
TABLE 1: BUDGET FOR A MIXED FARM AND A VEGETABLE FARM
| Option A: Mixed Farm | Option B: Vegetable Farm | ||
|---|---|---|---|
| $ | $ | ||
| Income | 9 000 | Income | 15 000 |
| Variable costs | 6 000 | Variable costs | 12 000 |
| Gross margin | 3 000 | Gross margin | 3 000 |
| Fixed costs | 500 | Fixed costs | 4 000 |
| Net profit | 2 500 | Net profit | (1 000) |
[10 marks]
Based on the information presented in Table 1, which of the options, a mixed farm or a vegetable farm, should Farmer Khalil operate?
[1 mark]
Using evidence from the table, explain TWO reasons for your choice in (a). Your explanation must compare one option with the other.
[4 marks]
Suggest ONE reason why EACH of the following is important for a farmer to consider when making decisions:
Gross margin
[2 marks]
Suggest ONE reason why EACH of the following is important for a farmer to consider when making decisions:
Net profit
[2 marks]
Define the term 'trade agreement'.
[2 marks]
CARICOM has a number of trade agreements with other countries. Give an example of ONE such trade agreement.
[1 mark]
Jaya is a major producer of agricultural products. She has been trying to export to the United Territories without success. The Ministry of Agriculture has just advised her that her country has signed a trade agreement with the United Territories.
Suggest THREE advantages of this trade agreement to Jaya's business.
[3 marks]
Henry is an egg farmer. He sells eggs to a supermarket in a nearby city. The purchasing manager at the supermarket recently complained about the quality of eggs delivered by customers. The eggs are sometimes cracked and the trays have many different-sized eggs. The purchasing manager has given Henry two weeks to improve on the quality of eggs that are delivered to the supermarket.
Outline TWO measures that Henry should take to improve the quality of eggs sold to the supermarket.
Measure
Explanation
Measure
Explanation
[4 marks]
SECTION II Answer ALL questions.
[10 marks]
Farmer Mary grows tomatoes for the local market. She observes that her yield is low. The extension officer visits her field and indicates that the tomato plants are affected by powdery mildew.
Other than a decrease in yield, state TWO symptoms of powdery mildew in tomatoes.
[2 marks]
State the name of the causative agent of powdery mildew.
[1 mark]
Explain THREE methods that Farmer Mary can use to control the powdery mildew in her tomato crop.
[6 marks]
Suggest ONE way in which powdery mildew can spread or be transmitted throughout Farmer Mary's tomato field.
[1 mark]
Farmer Gerona recently cleared ten hectares of flat land and plans to produce a crop of beans. She wants to carry out only primary tillage on her field. However, her friend, Farmer George, tells her that she also needs to do secondary tillage.
[6 marks]
State THREE advantages of primary tillage.
[3 marks]
Suggest THREE reasons why Farmer Gerona must also do secondary tillage before planting.
[3 marks]
Farmer Gerona attaches a seeder/planter to her tractor which she uses to sow the bean seeds directly into the ground.
Suggest FOUR benefits Farmer Gerona would derive from the use of this mechanical seeder/planter for planting her crop.
[4 marks]
On a recent field trip to Livestock Feed Mill, students were told that the feed mill produces 'production ration' for many classes of animals.
[5 marks]
Define the term 'production ration'.
[2 marks]
Farmer Andy received two different bags of poultry feed from Livestock Feed Mill with labels showing the constituents of the feed, as presented in Table 2.
TABLE 2: CONSTITUENTS OF TWO TYPES OF POULTRY FEED
Which of the two types of feed is BETTER suited for broiler birds at four to six weeks of age? Give TWO reasons for your answer.
[3 marks]
Farmer Sunita rears layer birds for table eggs. She uses the equipment shown in Figure 1 to prepare her eggs for the market.
Figure 1. Equipment used in preparing eggs for the market
State the name of the equipment shown in Figure 1.
[1 mark]
Explain why this equipment is necessary when preparing table eggs for the market.
[2 marks]
Farmer Sunita observed one of her workers washing the eggs instead of wiping them with a damp cloth.
Suggest TWO reasons why eggs should not be washed.
[2 marks]
Figure 2 shows the types of bees found in a hive.
Figure 2. Types of bees found in a hive
Figure 2 shows the types of bees found in a hive.
Identify the bees labelled X and Z.
X Z
[2 marks]
What is the function of the bee labelled Y?
[1 mark]
Farmer Asha wants to improve the yield of fruits in her citrus orchard. The extension officer advises her to establish an apiary in the orchard.
[4 marks]
Suggest to Farmer Asha TWO benefits of establishing an apiary in her citrus orchard.
[2 marks]
Farmer Asha realizes that beekeeping is a profitable business and wants to increase the size of her apiary. She decides to establish additional hives next to a vegetable farm. She observes that the honey yield of the hives located next to the vegetable farm is lower than that of those located in the orchard. Suggest TWO reasons why the yield of honey in the hives located close to the vegetable farm is lower than that of those located in the orchard.
[2 marks]
While inspecting one of her hives, Farmer Asha observes that many of the sealed cells in the combs of the brood box are dark brown and produce a foul smell.
[3 marks]
Identify the disease from which the bees are MOST likely suffering and state the agent that causes the disease. Disease Agent
[2 marks]
Suggest ONE management practice that Farmer Asha can implement to control this disease.
[1 mark]