WAEC GCE 2017 Agricultural Science Theory and Obj Answer Now Available Here
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AGRIC OBJ
1-10: DCBCDCBACA
11-20: BDDDCCBADB
21-30: DBDCDDDDBB
31-40: DCDDCCBCBA
41-50: BCDAABAACC
*PLS EXERCISE PATIENCE*
AGRICULTURAL SCIENCE Theory Answers
1a.
I) unpredictable climate
1. Droughts or prolong periods
without rain results in poor yields
2. Flooding results in erosion
3. Inadequate sunshine also reduces
photosynthetic ability of plants
ii) inadequate rural infrastructure
1. This results in urban drift ie
massive exodus to big cities for
better standard of living.
2. Results to massive reduction in
agricultural work force in rural
settings
3. Results in low agricultural
production
iii) Diseases
1. Result in increase in agricultural
cost of production
2. Reduce the quality of farm
produce
3. Reduce farmers income
1bi)
1. Contour ditch
2. Border dyke
3. Furrow irrigation
4. Wild flooding
1bii)
1. High salt problems or salinity of
soil which prevents proper growth
of crops
2. Transmissions of diseases is
possible
3. There is a build up and spread of
pest
4. Pollution of the environment is
possible
5. There is high cost of equipment
6. Vectors of diseases breed freely
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3ai)
i)Long lactation periods
ii)Immunity and resistence from
diseases
iii)Healthy variety
iv)Long life
3aii)
i)Camels
ii)Horses
3aiii)
i)It can perform more tedious jobs
than man.
ii)It can handle many farm
operations.
iii)It can be controlled or easy to
operate.
iv)They are much stronger than man
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No 4)
ABIOTIC COMPONENT:
I)light
II)temperature
III)water
Iv)atmosphere and wind
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4B)IMPORTANCE OF CARBON CYCLE
I)it is the basis of soil fertilizer
ii)it increases soil nutrients
Iii)it promotes the soil structure
Iv)it is both biological and physical
health of the soil
V) it is a buffer against harmful
substances
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No-4D
i)LIST OF FIBRE CROPS
I)KENAF- an edible seed
Ii)BEANs- an edible seed
Iii) Indian hemp- the dog bane
Iv) hemp- a strong fibre
V) FLAX- produces linen
4DII) BEVERAGES
I) – WHOLE MILK
II) SKIM MILK
III) COCOA
IV) BARLEY
V)GRAPES
Vi) chicone
Vii) coffee
Viii) Vegetable juice
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5ai)
-Beak/Mouth
-Esophagus
-Crop
-Proventriculus
-Small Intestine
5aii) -Beak/Mouth: The Beak/Mouth
contains glands that secrete saliva,
which wets the feed to make it
easier to swallow. Also, the saliva
contains enzymes, such as amylase,
that start the digestion process.
-Esophagus: The esophagus is a
flexible tube that connects the
mouth with the rest of the digestive
tract. It carries food from the mouth
to the crop and from the crop to the
proventriculus.
-Crop: The crop is an out-pocketing
of the esophagus and is located just
outside the body cavity in the neck
region. Swallowed feed and water
are stored in the crop until they are
-Proventriculus: The esophagus
continues past the crop, connecting
the crop to the proventriculus. The
proventriculus (also known as the
true stomach) is the glandular
stomach where digestion primarily
begins.
-Small Intestine:The small intestine
is made up of the duodenum (also
referred to as the duodenal loop)
and the lower small intestine. The
remainder of the digestion occurs in
the duodenum, and the released
nutrients are absorbed mainly in the
lower small intestine
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