(4b)
(i)It can cause algae boom
(ii)It prevents the penetration of lights into the water body
(iii)It can reduce the oxygen content
(iv)It causes pollution of the water body

(4c)
(i)It can increase the soil nutrients/organisms
(ii)It is used to feed livestocks eg cattles
(iii)It is used to replenish lost soil
nutrients

(4d)
(i)Improper refuse/sewage disposal
(ii)Dumping of contaminated items

(4e)
(i)Source of food to the farm animals
(ii)It improves soil nutrients
(iii)For production of fertilizers

(4f)
(i)Regular changing of water
(ii)Regular sanitation
(iii)Avoidance of feeding the fishes with high proteinous feeds
(iv)Regular/Early harvesting

(4g)
(i)Smoking
(ii)Salting
(iii)Drying
(iv)Refrigerating

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(2a)
E- It is a wood ash
F- It is a urea fertilizer

(2b)
E- Lime material/potash
F- Nitrogen

(2c)
Specimen E
(i) Lime
(ii) Quick lime
(iii) Potassium
Specimen F
(i) N.P.K fertilizer
(ii) Nitrate fertilizer
(iii) Manure

(2d)
(i) It is used to improve sandy soil
(ii) It is used to reduce or neutralize soil acidity

(2e)
(i) It may increase soil acidity
(ii) It can cause damage to plant
(iii) It can increase soil salinity
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(3a)
SPECIMEN G: Cowpea seeds
SPECIMEN H: Banana fruit

(3b)
bruchids

(3c)
Specimens G; The leaves and growth points can be picked and used as a vegetable dish
Specimens H; it regulates the movement of nutrients and waste products in and out of cells it can be use as food.

(3d)
Specimens G; Seeds using the vine cuttings of flowering plants.
Specimens H; Rhizome using the root mat, serving as the point from which banana pseudostems grow.

(3e)
Specimens G
(i)Nematode
(ii)Damping off disease

Specimens H
(i)Tapeworm
(ii)Rbizocton

(3f)
Specimen G
(i)Storage; Store in a cool dry place for future use and consumption
(ii)Packing; they are packed after harvesting as whole hands, part hands or clusters in cardboard cartons with plastic liners.
Specimen H
(i)Packing; they are packed after harvesting as whole hands, part hands or clusters in cardboard cartons with plastic liners.
(ii)Packaging; they are packaged after harvesting in other words Bananas are packed in 13kg cartons in hands, clusters and singles.
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(1a)
SPECIMEN A – Knapsack sprayer
SPECIMEN B – Hand fork
SPECIMEN C – Head pan
SPECIMEN D – Ranging pole

(1b)
(i) To get rid of leftover chemicals
(ii) To aid the easy flowing of the chemicals from the nozzle
(iii) To prevent it from rusting

(1c)
(i) Pulverizing the soil
(ii) Aerating the surface of the soil
(iii) Transplanting of seedlings

(1d)
(i) Metal surface
(ii) Metal handle
(iii) Hollow surface for loading