Waec 2018 100% correct agricultural science obj and theory answers available here

Monday, 30th April, 2018
Agricultural Science 2 (Essay) – 09:30 a.m. – 11:40 a.m.
Agricultural Science 1 (Objective) – 11:40 a.m. – 12:30 p.m.

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OBJ

AGRIC OBJ:
1-10: ACCADBDDBB
11-20: DDAABACBBA
21-30: CDCCADDDBA
31-40: BDDAACDDCD
41-50: CCBACBBBCC

THEORY

(1ai)
Basic Ammenities:
-It makes able bodied me to migrate from rural to urban areas in search of job
-Poor processing facilities for farm produce
-Shortage of water for irrigation purposes for all season cropping
-Poor health services reduces the productivity of farmers
(1aii)
Farm inputs:
-Available farm inputs are of inferior quality,outdated and crude
-Farm inputs like chemicals,fertilizers,tools and implements are grossly inadequate
-Modern farm inputs are not produced in Nigeria
-Farm inputs are expensive to buy and maintain

 

(1bi)
Tractor:
-Used for drawing farm implements like plough,harrows,ridgers etc
-It has hydraulic control system which aids the lifting of coupled implements
-It can be used to carry harvested crops or other farm products from the farm to the market

(1bii)
Buldozzer:
-For bush clearing
-For felling trees and stumps
-For levelling ground

(1c)
-Service at regular interval
-Replace worn out or weld broken parts
-Adhere strictly to manual or manufacturer’s instruction
-Routine and regular changing of oil

 

 

2A
.i. The main cause of soil acidification is inefficient use of nitrogen.
.ii. export of alkalinity in produce.
.iii.over grazing
.iv. Soil acidifies because theconcentration of hydrogen ions in the soil increases.
.v. Lack of manure
====================

 

2b)

2c)
Liver fluke disease (fasciolosis) is caused by the trematode parasite Fasciola hepatica. Disease can result from the migration of large numbers of immature flukes through the liver, or from the presence of adult flukes in the bile ducts, or both. Liver fluke can infect all grazing animals (and man) but mainly affects sheep and cattle. It is most pathogenic in sheep.
===================================

4a)
Land tenure can be defined as the manner in which a party holds or occupies an area of land.

4b)
A weed may be defined as any plant or vegetation that interferes with the objectives of farming or forestry, such as growing crops, grazing animals or cultivating forest plantations.

 

4C)
i) Rootknot nematode/Meloidogynespp.

 

5b)
(i) Calcium
(ii) Potassium
(5c)
(i) They help in enegry production
(ii) They enhances healthy bone and teeth
(iii) They help in nerve and muscle function
(iv) They provide strong immune for the body
(5di)
Inflammation of the teat
(5dii)
– Use of germicides
– Removal of causative agents
(5div)
Rinder pest
(5dv)
Immunization by vaccine combined with
quarantine
(5dvi)
Use strict biosecurity measures for animals,
animal
products.
(5dvii)
Unusually watery faeces that are yellowish-
green in colour
(5dviii)
Use of vaccination

 

(6a)
i.By washing of the feeders and drinkers regularly
ii.Admistration of vaccine and medication to birds
iii.Fumigation and proper sanitation should be done before arrival of the bird
iv.Provision of medication and vaccination

(6b)
-It prevents secondary infection caused by horn injuries
-It creates more space for animals
-It prevents injuries to the body of other animals
-It makes it safer during vaccination or deworming of animals

(6c)
– harvesting
– packaging and packing
– transport
– advertising
– food processing

(6d)
-Inadequate for land tenure system
-inadequate finance and credit facilities
-poor marketing system
-inadequate farm input

Typing………..
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