Number 1
(1a)
A: Wheelbarrow
B: Garden fork
C: Shears
(1b)
(PICK ANY THREE)
(i) It has one wheel at the front.
(ii) It has two long handles.
(iii) It has a metal or plastic tray for carrying materials.
(iv) It has two supporting legs.
(v) It has a metal frame connecting the tray, handles and wheel.
(1c)
(PICK ANY TWO)
(i) Loosening and turning the soil.
(ii) Breaking soil clods.
(iii) Mixing manure or compost with the soil.
(iv) Removing weeds and underground roots.
(1d)
(PICK ANY TWO)
(i) Clean the garden fork after use.
(ii) Apply oil or grease to the metal parts to prevent rusting.
(iii) Sharpen blunt prongs when necessary.
(iv) Store it in a dry tool shed.
(v) Replace or tighten a loose handle.
(1e)
(PICK ANY TWO)
(i) Trimming hedges and ornamental plants.
(ii) Pruning small branches and shoots.
(iii) Cutting grass and unwanted vegetation.
(iv) Shaping shrubs and flowers.
(1f)
A: Head pan
B: Hoe
C: Cutlass
Number 2
(2a)
D: Inorganic or artificial fertilizer.
E: Organic fertilizer or farmyard manure.
(2b)
(PICK ANY THREE)
(i) It may cause excessive vegetative growth of crops.
(ii) It may scorch or burn crop leaves and roots.
(iii) It may increase soil acidity.
(iv) It may pollute nearby streams and groundwater through leaching and run-off.
(v) It may cause nutrient imbalance in the soil.
(vi) It may reduce the activities of useful soil microorganisms.
(2c)
(PICK ANY TWO)
(i) Yellowing or chlorosis of older leaves.
(ii) Stunted growth of crops.
(iii) Development of small and pale-green leaves.
(iv) Reduced flowering, fruiting and crop yield.
(2d)
It is applied to increase the growth of plankton and other natural food organisms eaten by fish.
(2e)
(PICK ANY THREE)
(i) Cow dung adds humus and organic matter to the soil.
(ii) It improves soil structure and aeration.
(iii) It increases the water-holding capacity of the soil.
(iv) It supplies several plant nutrients rather than mainly nitrogen.
(v) It encourages the activities of useful soil organisms.
(vi) It is less likely to scorch crops when properly decomposed.
(2f)
(PICK ANY TWO)
(i) The cow dung should be properly decomposed before application.
(ii) Gloves and protective clothing should be worn when handling it.
(iii) It should not be applied excessively.
(iv) It should be properly incorporated into the soil.
(2g)
(PICK ANY TWO)
(i) Poultry droppings.
(ii) Compost manure.
(iii) Green manure.
(iv) Pig dung.
Number 3
(3a)
F: Dioscorea species
G: Arachis hypogaea
(3b)
(PICK ANY THREE)
(i) Regular weeding of the farm.
(ii) Staking of the yam vines.
(iii) Application of manure or fertilizer.
(iv) Mulching around the yam plants.
(v) Control of pests and diseases.
(vi) Earthing up the soil around the base of the plants.
(3c)
(PICK ANY THREE)
(i) Production of groundnut oil.
(ii) Manufacture of margarine.
(iii) Production of soap and cosmetics.
(iv) Manufacture of groundnut cake for livestock feed.
(v) Production of peanut butter.
(vi) Manufacture of paints and lubricants.
(3d)
(PICK ANY ONE)
(i) It eats and destroys harvested or stored crops.
(ii) It cuts young plants and damages their stems.
(iii) It feeds on seeds and tubers in the field.
(3e)
(PICK ANY FOUR)
(i) Set traps or use poisoned baits.
(ii) Keep the farm and store surroundings clean.
(iii) Destroy rat holes and hiding places.
(iv) Use rodenticides.
(v) Store farm produce in rat-proof containers or buildings.
(vi) Encourage predators such as cats.
(vii) Clear bushes around the farm and storage areas.
(3f)
F: Yam mosaic disease.
G: Groundnut rosette disease.
Number 4
(4a)
I: Animal horn
J: Oyster shell
K: Maize cob
(4b)
(i) Removal with a dehorning saw or dehorning clipper.
(ii) Burning the horn bud with a hot dehorning iron.
(iii) Application of caustic soda or caustic potash to the horn bud.
(4c)
(i) To prevent animals from injuring one another.
(ii) To make the animals easier and safer to handle.
(iii) To reduce the space occupied by animals during feeding and transportation.
(4d)
J:
(i) It supplies calcium needed for strong bones and teeth.
(ii) It promotes the formation of strong eggshells in laying birds.
K:
(i) It supplies fibre or roughage that aids digestion.
(ii) It provides energy and adds bulk to livestock feed.
(4e)
J: Rickets.
K: Ketosis.