WAEC 2020 Agriculture Science Obj And Essay Answer – Aug/Sept Expo «

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AGRIC OBJ:

1-10: CBBCDBCAAB

11-20: CCCCDDDCDC

21-30: ADDACACBBC

31-40: AABBACCCBB

41-50: CBDAACDABC

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NO: 1,2,3,5,6 POSTED

(1ai)

Poor Transportation

(Choose Any Two)

(i)construction of new feeder roads to open up the rural

areas

(ii)construction of water ways to link up the riverine area

(iii)construction of railways to connect rural areas to the

urban centres

(iv)Reduction in transportation cost to make such

affordable to the rural farmers

(v)Provision of vehicles ,boats and trains to facilitate the

distribution of farm product

(1aii)

Environmental degradation

(Choose Any two)

(i)Flooding should be avoided

(ii)soil erosion should be properly checked

(iii)cover cropping should be practised

(iv)Terracing and strip cropping should also be practised

(v)Pollution and deforestation should be avoided

(1aiii)

Use of crude farm input

(choose Any two)

(i)Government should subsidise the cost of farm input

(ii)Farm input should be supplied at the right time to

farmers

(iii)Local sourcing of these inputs should be encouraged

(iv)Establishment of tractor- hiring unit at affordable costs

to farmers

(1bi)

Animal power

(choose Any Three)

(i)Treat animals fairly to prevent them from being hostile

(ii)Do not overwork draught animals

(iii)Feed and provide them with adequate water

(iv)Make sure that animals are healthy

(v)Apply muzzle and keep them in a healthy environment

(1bii)

Electrical power

(i)

(ii)

(iii)

(1c)

(i) To increase durability.

(ii) To increase efficiency.

(iii) Reduce costs of replacement.

(iv) For safety of the user/avoid accidents.

(v) Avoid damage to the tool.

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(2)

(2ai)Soil texture: refers to the relative proportion (sizes) of

the various particles of the soil . in other words,it refers to

the degree of fitness or coarseness of the various soil

particle.

(2aii)soil structure: refers to the ways in which different

particles of the soil are packed or arranged. it is also

refers to the shape and arrangement of primary particles

to form compound particles

(2aiii)soil profile:refers to the vertical section of the

soil,showing series of horizontal layers of different type of

soil and these horizontal layers are called horizons.

(2bi)

(i) It is used to rapidly increase the number of desirable

cultivars

(ii) It is used to change plant form

(iii) I Used to repair damaged plant parts

(2bii)

(i) Mango

(ii) Guava

(2c)

(i) Mulching

(ii) Application of farmyard manure

(iii) Bush fallowing

(2d)

(i) Storage in airtight bins helps maintaining insect free

grains.

(ii) Before storing grains the go downs (store houses)

should be disinfected. Following methods of

disinfestations of store rooms are recommended

(iii) Threshing yard should be situated more than a mile

away from the granaries so as to reduce the chance of

pest reaching to granaries through migration.

(iv) For bag storage of grains, “pucca” cement concrete or

brick made store houses are recommended.

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(3ai)

Method of propagation:

Sexually (by seeds) and vegetative propagation

(3aii)

Spacing in the field:

7.0m × 7.0m

(3aiii)

(i)The seedings are now replanted at 60cm × 60cm

spacing

(ii)it is planted around April and May

(3aiv)

(choose Any Two)

(i)Thrips

(ii)Red mites

(iii)Aphids

(iv)Fruit borers

(v)Caterpillars

(3av)

(choose Any two)

(i)Gummosis

(ii)Citrus scab

(iii)Tristeza

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(5a)In a tabular form

DISEASES:

Brucellosis:

(i) Bacteria

(ii) Cattle, sheep, goat

(iii) Fever, loss of appetite

(iv) Proper vaccination

Aspergullosis:

(v) Fungi

(vi) Dog, pig

(vii) Cough, fever

(viii) Proper vaccination or isolation of affected animals

(5b)

(i) It helps to improve hygiene of the chickens

(ii) It also helps to reduce incidence of friction.

(iii) It helps to reduce excess exercises thereby leading to

a better production.

(iv) It leads to lost cost.

(v) It does not require the problem of letters.

(5c)

(i) It leads to higher incidence of foot lesions.

(ii) It leads to high incidence of metabolic disorder.

(iii) Lack of dust bathing opportunities.

(iv) Lack of behavioural opportunities.

(v) It may lead to high risk of diseases.

CLICK HERE FOR THE IMAGE

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(6a)

Tabulate

Balance sheet as at 31st December.

Under Right.

Loan payable to cooperation 250,000

Debit payable to feed Miller's 100,000

Capital outlay 600,000

=950,000

Under Left.

Closing valuation 600,000

Cash in bank 250,000

Debit received from egg seller 100,000

=950,000

CLICK HERE FOR THE IMAGE

(6aii)

(i)To know the financial position of the farm business.

(ii)It reveals the assets and liabilities of the farm business

(6b)

(i)Commercial bank

(ii)Government Agricultural grant

(iii)personal savings

(iv)Agricultural credit scheme

(v)Agricultural cooperative societies

(6c)

(i)woodshavings is durable

(ii)woodshavings do not cake up easily

(iii) it does not harbour bacteria as that of saw-dust

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