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*NECO CIVIC EDUCATION QUESTIONS*
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*2024 WAEC GCE ππππππ πππππππ ππππππππ πππππππππ*
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*WAEC GCE AGRIC PRACTICAL*
*NUMBER FOUR*
(4a)
A - Natural Brooding
B - Artificial Brooding
(4b)
I - Reflector
II - Electric bulb
III - Brooder box
(4c)
(PICK FOUR ONLY)
(i) Ensure proper ventilation in the brooding area to prevent overheating and maintain air quality.
(ii) Position the reflector and electric bulb at an appropriate height to provide sufficient heat for the chicks.
(iii) Regularly check and adjust the temperature inside the brooder box to ensure it remains within the optimal range for the chicks.
(iv) Monitor the humidity levels in the brooding area to create a comfortable environment for the chicks.
(v) Clean the brooder box regularly to maintain hygiene and prevent the spread of diseases.
(vi) Provide fresh food and water for the chicks on a regular basis to support their growth and development.
(vii) Monitor the behavior and health of the chicks closely to detect any signs of illness or distress early on.
(4d)
(PICK THREE ONLY)
(i) Rodents
(ii) Snakes
(iii) Lizards
(iv) Birds
(v) Raccoons
(vi) Squirrels
(4e)
(PICK THREE ONLY)
(i) Increased risk of diseases and infections due to lack of controlled environment and biosecurity measures
(ii) Inability to monitor individual bird health and growth effectively
(iii) Higher likelihood of predator attacks on chicks
(iv) Limited control over environmental factors such as temperature and humidity
(v) Greater susceptibility to adverse weather conditions
(vi) Difficulty in providing proper nutrition and access to clean water.
*WAEC GCE AGRIC PRACTICAL*
*NUMBER 4*
(4a)
A: Natural brooding (using a hen to provide warmth to chicks).
B: Artificial brooding (using artificial heat and light source for chicks).
(4b)
I: Heat/Light source (electric bulb).
II: Reflector.
III: Feeding and water trough (or feeding area).
(4c)
(i) Regular cleaning and disinfection of the brooder.
(ii) Ensuring constant supply of clean water and feed.
(iii) Monitoring and maintaining the appropriate temperature.
(iv) Checking and replacing the bedding material.
(4d)
(i) Rats.
(ii) Snakes.
(iii) Mice.
(4e)
(i) Limited number of chicks can be brooded at once.
(ii) Higher risk of disease transmission from the hen to the chicks.
(iii) Inconsistent heat supply, especially during cold weather.
*NECO GCE CHEMISTRY PRACTICAL*
(3ai)
(i) Litmus paper
(ii) Universal indicator paper
(iii) pH paper
(3aii)
Distilled water is free from impurities, dissolved salts, and ions (such as calcium, magnesium, or chloride ions) that may interfere with the reactions during analysis.
(3aiii)
(i) Smell or odor
(ii) Effects on litmus paper
(iii) Flammability
(3bi)
Sodium trioxocarbonate (IV) (NaβCOβ) functions as a base because it reacts with acids to neutralize them, forming a salt, water, and carbon dioxide gas.
(3bii)
Silver trioxonitrate (V) (AgNOβ) is light-sensitive and decomposes when exposed to light, releasing elemental silver and nitrogen oxides. Storing it in an amber-colored bottle protects it from light, preventing decomposition and maintaining its stability.
*NECO GCE CHEMISTRY PRACTICAL ANSWERS*
(2ai)
Observation: Dissolved to form a blue-green precipitate (ppt).
Inference: Presence of a transition metal salt
(2aii)
Observation: It turned blue litmus paper red.
Inference: The solution is acidic.
(2aiii)
Observation (drops of NaOH): A light blue gelatinous precipitate formed.
Inference: Presence of CuΒ²βΊ ions.
Observation (excess NaOH): The precipitate was insoluble in excess NaOH.
Inference: CuΒ²βΊ ions confirmed
(2aiv)
Observation: A light blue precipitate formed.
Inference: Presence of CuΒ²βΊ ions.
(2av)
Observation: A black precipitate formed.
Inference: Presence of CuΒ²βΊ ions as CuS.
(2bi)
Observation: Acidic gas (HCl) was given off.
(2bii)
Inference: Confirms presence of Clβ» ions.
(2biii)
Inference: Presence of Clβ» ions.
*NECO GCE CHEMISTRY PRACTICAL ANSWERS*
(2ai)
Observation: Dissolved to form a blue-green precipitate (ppt).
Inference: Presence of a transition metal salt
(2aii)
Observation: It turned blue litmus paper red.
Inference: The solution is acidic.
(2aiii)
Observation (drops of NaOH): A light blue gelatinous precipitate formed.
Inference: Presence of CuΒ²βΊ ions.
Observation (excess NaOH): The precipitate was insoluble in excess NaOH.
Inference: CuΒ²βΊ ions confirmed
(2aiv)
Observation: A light blue precipitate formed.
Inference: Presence of CuΒ²βΊ ions.
(2av)
Observation: A black precipitate formed.
Inference: Presence of CuΒ²βΊ ions as CuS.
(2bi)
Observation: Acidic gas (HCl) was given off.
(2bii)
Inference: Confirms presence of Clβ» ions.
(2biii)
Inference: Presence of Clβ» ions.
*WAEC AGRIC PRACTICAL*
*NUMBER ONE*
(1ai)
A - Platy
B - Blocky
C - Granular
D - Prismatic
(1aii)
(PICK ANY TWO)
(i) Add organic matter (eg, compost or manure) to enhance soil aggregation and fertility.
(ii) Practice conservation tillage to avoid soil compaction and maintain structure.
(iii) Introduce cover crops to reduce erosion and improve soil health.
(iv) Apply gypsum to improve the structure of clay soils by breaking down compacted layers.
(1aiii)
(PICK ANY TWO)
(i) Enhances water infiltration and retention, ensuring sufficient water for plant roots.
(ii) Improves aeration, enabling root respiration and nutrient uptake.
(iii) Reduces soil erosion by holding soil particles together.
(iv) Facilitates root penetration, allowing plants to access deeper nutrients and water.
(1b)
Earthworm
(1bi)
(PICK ANY THREE)
(i) Soil pH (earthworms thrive in neutral to slightly alkaline soils).
(ii) Moisture levels (they require moist soil for survival).
(iii) Organic matter availability (as food source).
(iv) Soil temperature (extreme heat or cold can reduce their population).
(v) Use of chemical fertilizers or pesticides (can harm or kill earthworms).
(1biii)
(PICK ANY THREE)
(i) Enhances soil aeration through burrowing.
(ii) Increases soil fertility by breaking down organic matter into humus.
(iii) Improves water infiltration by creating tunnels in the soil.
(iv) Promotes nutrient cycling by digesting and excreting organic materials.
(v) Reduces soil compaction, creating better conditions for root growth.
