WAEC 2019 - AGRIC PRACTICAL ANSWER

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ANSWERS:


(1a)
Specimen A - RAKES
(i)it is use for clearing and gardening tasks.
(ii) it is used for levelling or spreading soil surface after hoeing
(iii) it is used for breaking up soil lumps into finer particles

SPECIMENS C - SHOVEL
(i)it is used to transfer soil from one place to another.
(ii)it is used to garden parts and also to remove stone and unwanted materials from the farm.
(iii) It is use for digging, lifting, and moving bulk materials, such as soil, coal, etc.

SPECIMEN D - CUTLASS
(i)it is use for pre-planting activities such as the cutting down and clearing of grasses, bushes and trees.
(ii)it is used for planting seeds of some crops.
(iii)It is use for harvesting some crops.

(1b)
SPECIMEN E is A wheelbarrow. It is a small hand-propelled vehicle, usually with just one wheel, designed to be pushed and guided by a single person using two handles at the rear, or by a sail to push the ancient wheelbarrow by wind.

(1b)
(i) Always clean it after use
(ii) Tighten the bolts on wheelbarrows periodically
(iii) check the air in the tires regularly

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(2a)
Under F:
(i) It is fine grained
(ii) F is clay
(iii) Holds water very well
(iv) Forms roll and ring convieniently

Under G:
(i) It is moderately grained
(ii) F is Loamy
(iii) Moderate water retention
(iv) Weakly forms a roll

Under H:
(i) It is coarse grained
(ii) F is Sandy
(iii) Low water retention
(iv) Cannot form a roll and ring convieniently

(2b)
(i) potatoes
(ii) carrots

(2ci)
SPECIMEN G

(2cii)
(i)contained decayed matter
(ii)the lumps are finable
(iii)it well aerated

(2d)
(i)it helps in moung the soil
(ii)it add humus to the soil
(iii)help the soil to be well aerated due to growing.

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(3a)
J = Leaf vegetable and bulb.
K = Fruit and leaf vegetable.
L = fruit and root.
M = Leaf vegetable.
N = Fruit and Leaf vegetable.
O = Leaf vegetable.

(3b)
(i) Crop rotation.
(ii) Tillage.
(iii) Pest management.
(iv) Irrigation.
(v) Soil fertilization.

(3c)
(i) They are source of income.
(ii) To make food available for the family.
(iii) To improve the environmental health.
(iv) For research purposes.

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(4a)
Specicmen Q:
(i) Calcium

Specimen S:
(i) Carbohydrates
(ii) Lipids (fats and oil)

(4b)
CARBOHYDRATES:
(i) Providing energy.
(ii) Breakdown of fatty acids and preventing ketosis.
(iii) regulation of blood glucose

LIPIDS:
(i) For storing energy
(ii) For signaling
(iii) It act as structural components of cell membranes

(4c)
(i)cow
(ii)pork
(iii)sheep
(4d)

(4d)
(i) It may lead to transmission of diseases
(ii) It can leads to animal mortalility if misused
(iii) It decreases productivity rate







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