2022 WAEC Agric Science Essay & OBJ Answers [21st June]
Get Free Live 2022 WAEC May/June Agricultural Science (AGRIC) Essay (Theory) and Objectives (OBJ) Questions and Answers for School Candidates Free of Charge | WAEC May/June Free AGRIC Questions and Answers EXPO Room (21st June, 2022).
WAEC May/June 2022 FREE AGRIC ANSWER ROOM [School Candidates]

Tuesday, 21st June, 2022
Agricultural Science 2 (Essay) – 2:00pm – 4:10pm
Agricultural Science 2 (Objective) – 4:10pm – 5:00pm

2022 WAEC AGRICULTURAL SCIENCE OBJECTIVES (OBJ) ANSWERS:

1-10: BCDCCDDBAC
11-20: BAABDBBAAA
21-30: BACBBDDABD
31-40: ADBACBCDBB
41-50: CDDDADBDCA

2022 WAEC AGRICULTURAL SCIENCE ESSAY OR THEORY ANSWERS

(1a)

(i) To safeguard farmers against unreasonable eviction

(ii) To ensure that agricultural land is not unnecessarily diverted to non-agricultural purposes

(iii) To make large tracts of land available for government-sponsored development of large scale farms 

(iv) To carry out large scale improvement such as irrigation, drainage and soil water conservation

(1av) For even distribution of land.

(1bi) 

Mechanical power

(1bii)

(i) It can handle more areas per unit of time

(ii) It works faster and more efficient

(iii) It can perform a wide range of operation

(iv) It reduces cost of labor and total cost of production


(1c)

(i) Seed tube: They conduct seeds from feed cups to the furrow lines

(ii) Furrow opener: It creates a well-defined groove in the soil where the seed can be placed at the proper depth

(iii) Hopper: Holds particulate matter or flow-able material of any sort

(iv) Seed metering device: To collect seed in a singular or group fashion 

(v) Furrow wheel: To stabilize the plough and take side thrust


(1d)

(i) Power threshers

(ii) Milling machine

(iii) Winnowing machine


(2a)

(i) Monocropping: The practice of growing a single crop year after year on the same land.


(ii) Mixed cropping: It involves the growing of two or more species or cultivars of the same species simultaneously in the same field.


(iii) Mixed farming: It is a type of farming which involves both the growing of crops and the raising of livestock.


(iv) Crop rotation: the practice of growing a series of different types of crops in the same area across a sequence of growing seasons.


(2bi)

Phosphorus deficiency


(2bii)

(i) Anhydrous ammonia

(ii) Ammonium sulfate

(iii) Superphosphate

(iv) Urea-ammonium nitrate


(2c)

(i) Wax

(ii) Propolis

(iii) Old brood comb

(iv) Pheromones

(v) Essential oil

(v) Lemon grass essential oil 


OR


3.

(3a)

(i) Storage pests: During storage, pests can infest crops if storage is not properly done.

(ii) Moisture: Maize can be destroyed if water finds its way into the maize grains.

(iii) Temperature: Maize will be destroyed during storage if temperature is not adequate

(iv) Poor aeration: When Maize grains during storage do not have access to moderate aeration, they can be damaged.


(3b)

IMAG


(3c)

Mendel’s first law states that genes are present in pairs in non-reproductive cells so that each gamete contains only one contrasting factor. [SEGREGATION]


Mendel’s second law states that when more than one pair of factors are considered, each pair segregates independently of every other pair.[INDEPENDENT ASSORTMENT]


(3d)

(PICK ANY TWO)

(i) Alfalfa

(ii) Andropogon

(iii) Sorghum

(iv) Panicum

(v) Pennisetum 

(vi) Axonopus


4.


OR


(4c)

(i) It increases the nutrient level of the soil

(ii) It ensures balsnced ration for livestocks while grazing

(iii) It reduces cost of feeding livestocks

(v) It reduces the attack of pests


5a)

(i) Balanced diet: This is a diet consisting balanced amounts in proper proportions of carbohydrates, fats, proteins, vitamins, minerals, and water intake for healthy growth and for efficient daily activities and functions.

(ii) Maintenance ration: This is the amount of feed given to an animal that are just enough to enable the animal carry out its important functions like respiration, digestion, regulation of body temperature. It does not allow for an increase or decrease in body weight or production. 

(iii) Production ration: This is the amount of nutrients supplied to animals in excess of those needed for maintenance. The excess nutrients are thus used for productive purposes such as meat, egg and milk production. The quantity and quality determine the magnitude of increase in production.

(iv) Malnutrition: This refers to deficiencies or excesses in nutrient intake, imbalance of essential nutrients or impaired nutrient utilization.

(5b)

(PICK ANY SIX)

(i) Retarded growth.

(ii) Low production of eggs.

(iii) Decrease in milk production.

(iv) High mortality rate in young animals.

(v) Presence of farm animal diseases.

(vi) Physical deformities.

(vii) Weight loss/emaciation.

(viii) Poor appearance.


(5c)

(i) Shading

(ii) Mulching

(iii) Weeding 

(iv) Watering

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