Waec Agric practical Questions and answers 2023

Here is the waec Agric practical Answers for 2023

1(a):

1. Soil fertility: Earthworms require a favourable soil environment that provides sufficient food and moisture to support their livelihood.

2. Soil structure: Earthworms prefer soil that is porous, allowing for adequate air and water circulation, while also providing a proper balance of nutrients.

1(b):

1. Soil aeration: Earthworms burrow through the soil, creating channels that allow air and water to circulate through the soil more easily. This improves the soil’s aeration and drainage.

2. Nutrient cycling: Earthworms help to break down organic matter, such as fallen leaves and dead roots, into nutrients that can be used by plants. This process is known as nutrient cycling.

3. Soil structure: Earthworms can improve soil structure by creating burrows that help to loosen the soil, allowing for better root penetration and greater uptake of nutrients.

4. Water retention: Earthworms help to create pore spaces in the soil which can hold onto water. This can help to prevent soil erosion and improve plant growth.

5. Biological activity: Earthworms are an important part of the soil food web. They consume decaying organic matter and provide food for other soil organisms, such as bacteria and fungi, which help to improve soil health and fertility.

*Another 1B*

(1b) ????
(i) Helps to improve soil structure and granulation.
(ii) They help to also improve the aeration of the soil.
(iii) They help to decompose organic materials in the soil to form humus.
(iv) They improve soil water percolation or drainage.
(v) They also increase the collocidal properties of the soil

(2a)
E – They are used to provide drinking water to animals or livestock on farm.
F – Usually found in a barn or stable from which cattle, sheep or any animal feed.
G – A device use for testing egg while they are incubating, to determine if they are viable or not.
H –

*WAEC AGRICULTURAL SCIENCE PRACTICAL ANSWERS*

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(1a)
(Pick any two)
(i) temperature
(ii) moisture
(iii) texture
(iv) pH

(1b)
(i) Helps to improve soil structure and granulation.
(ii) They help to also improve the aeration of the soil.
(iii) They help to decompose organic materials in the soil to form humus.
(iv) They improve soil water percolation or drainage.
(v) They also increase the collocidal properties of the soil

(1c)
(i) it attack crops
(ii) it affect the quality of crops
(iii) it reduce the market value of crops
(iv) it Discourage farmers from cultivation

(1d)
(i) it is high in soil nutrients
(ii) it is rich in humus
(iii) it makes crop to germinate properly
(iv) it is rich in soil organism
*WAEC AGRIC PRACTICAL ANSWERS*

*3a)*

Specimen I (Sugarcane): Saccharum officinarum

Specimen J (Pineapple fruit): Ananas comosus

Specimen K (Ginger): Zingiber officinale

3b)

Specimen I (Sugarcane): lThe planting material for propagating sugarcane is typically the stem sections or stalks of mature sugarcane plants.

Specimen J (Pineapple fruit): The crown, which consists of the leaves and a small portion of the fruit, is the planting material used for propagating pineapple.

Specimen K (Ginger): The planting material for propagating ginger is the rhizome
AGRIC SCIENCE PRACTICAL

4(di)

1. Increased water consumption: Chicks may drink more water to keep themselves hydrated and regulate their body temperature in response to excessive heat.

2. Panting or open-mouth breathing: Chicks may exhibit panting or open-mouth breathing as a way to dissipate excess heat and cool their bodies.

(4dii):

1. Huddling: Chicks may gather closely together, huddle, and seek warmth from each other to compensate for the lack of sufficient heat from the electric bulb.

2. Reduced activity: Chicks may become less active and move less in an attempt to conserve their body heat.

(4e)

Advantages of using a charcoal pot in a poultry house:

1. Heat regulation: Charcoal pots can provide a consistent and controlled source of heat, helping to maintain an optimal temperature in the poultry house.

2. Improved air quality: Charcoal has the ability to absorb odors and gases, acting as a natural air purifier.

3. Reduced humidity: Charcoal has a drying effect, which can help lower the humidity level in the poultry house.

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