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[Waec Answer] Waec 2018 Agricultural Science Practical Questions And Answers Now Posted

AGRIC PRACTICAL. ANSWERS


Agric Practical Questions And Answers.

1a)
Specimen A
i) It is used for falling of trees
ii) It is used for cutting the roots during stumping.
iii) It is used for cutting logs of woods into smaller pieces

Specimen B
i) It is used for lifting and tuning the soil
ii) It is used for levelling of the soil
iii) It is used for digging holes during transplanting

Specimen D
i) It is used for transplanting of seedling
ii) It is used for applying manure after and before planting
iii) It is used for nursery operation / practice

Specimen F
i) It is used for pulverizing the soil
ii) it is used for aerating the soil
iii) It is used for transplanting seedlings

(1b)
i) The Metal part should be sharpened when blunt
ii) The metal part should be oiled or greased to prevent rusty
iii) The wooden part should be stored or kept in a place that termite cannot eat it
iv) Store in a cool and dry place
====================

(2a)
Specimen G – Ph = 7 (neutral)

Specimen H – Ph = 1-4 (acidic)

Specimen I – Ph = 8-14 (alkaline or bionic)

(2b)
Specimen G:
When G is added to water sample in a glass beaker and stored with blue and red litmus paper, No colour change was observed, showing neutral.

Specimen H:
When H is added to a water sample in a beaker and stirred and tested with blue and red litmus paper. It changes blue litmus paper to red showing that it is acidic.

Specimen I:
When I is added to a water sample in a beaker and stirred/tested with litmus papers. It changes the red litmus paper to blue showing that it is basic or alkaline.

(2ci)
If the Ph is 4.5 it shows that it is slightly acidic

(2cii)
i) It destroys the root of plant

ii) It prevent the uptake of food from the root system

iii) it prevent the normal growth of plant except plant like tomatoes

(2ciii)
i) Washing away of soil nutrients by erosion

ii) Planting operations like Monocropping

iii) Excessive use of land of a long period of time
====================

(3a)
J – is weavil

K – is beetle

L – is mosaic disease

M – is fruit rot

3b)
i). It Causes Low Yield

ii). It Reduces The farmers income

iii). Transmission of diseases

iv). It causes the death of plants

v). They bore into seed

(3c)
SPECIMEN J

(i) by the use of chemicals

(ii) by the use of pesticides

(iii) through and picking

SPECIMEN K

(i) through the use of pesticides

(ii) by handpicking

(iii) by the use of chemicals

SPECIMEN L

(i) through the practise of crop rotation

(ii) by using fungcidese

SPECIMEN M

(i) through the use of rodenticide

(ii) by setting traos for the rodents
====================

4a)
i)cattle

ii)Sheep

iii)Goat

4b)
specimen N

i) it sucks the blood of its host

ii) it reduces the size of its host

iii) it reduces the market valve of its host

iv) It kills its host

Specimen O

i) It kills it’s host

ii) it reduces the quality of it’s host

iii) it causes anaemia to its host

iv) it sucks the blood of it’s host

(4c)
i) By proper sanitation measures

ii) By handpicking

iii) By dipping the infected host in chemicals

iv) By using insecticides

v) By isolation of infected animals

vi) By quarantine

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Comments:
[55months ago] Kenneth5 :

I have subscribed

[55months ago] Silver loveth :

Mr. Solution i wnt to subscribe for my neco i have sent u a message for your bank details. Am Chika Gold

[55months ago] ltz Gift :

Pls post the ansa here

[55months ago] Vickky :

Tanks

[55months ago] bestie love :

Tanks admin


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