Expo:Waec GCE agri practical

1a)
Solar power (Sun)
1ai)
To determine d presence of micro
Organism in a soil
1aii)
Lime water in flask. I will turned milky and
lime water in flas II will remain clear
1aiii)
Shows that there are presence of micro-
organism in d soil sample in flask I and
there is respiration which turn lime water
milky
1bi)
i)Vegetative propagation
1bii)
i)cocoa
ii)Kola
iii)coffee
1biii)
i)pollination agent which can be fail to
perform successfully are not required
ii)the hazards of fertilizatiom are avoided
iii)the new plants mature fast because the
offspring tend to acquires the age of the
parent
iv)the offspring are true to types because
there is no mixture of hereditary
characters.
1c)
-advantage-
i)It increases photosynthesis activities
-disadvantages-
i)leads to high evaporation content in
plant
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2a)
Solar Power
2b)
i)for drying fishes
ii)to produce electricity
iii)heating farm steads
2c)
-Advantages-
i)It is easily available
ii)It is a very neat source of power
iii)it is very useful in farm photosynthesis
-Disadvantages-
i)it is expensive to store and harness
ii)The energy from the sun can be
erratic.its not possible to control it
iii)only available during the day
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3a)
I-comb
II-wattle
3bi)
i)Intensive system
3bii)
i)there is considerable reduction in labour
ii)allow hen to stand and sit
3biii)
i)Ensure hen is confined which permit
limited movement.
ii)allowing hen to stand comfortably
3biv)
i)ensure hen stand and sit comfortably
ii)ensure tightening of the cage
iii)ensure confined of the cage
iv)ensure permit of limited movement
3c)
i)fowl cholera
ii)pollurium
iii)cocidiosis diseases