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(a) Explain briefly how the following affect agricultural production:(I) agricultural ...

(a) Explain briefly how the following affect agricultural production:(I) agricultural education and extension (ii) environmental degradation. [8 marks]
(b) Enumerate three problems associated with communal land tenur system. [3 marks]
(c) List four components of an incubator. [2 marks]
(d) Mention one storage structure for each of the following farm produce: (i) yam tubers (ii) cowpea seeds (iii) fresh fish. [3 marks]
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    Correct Answer: Option n
    Explanation:
    2(a) How agricultural production is affected by (i) Agricultural education and extension:
    - Improved/better farm management decision making
    - Improved procurement of farm inputs
    - Access to marketing information and strategy
    - Keeping of accurate farm records
    - Acquisition of loans and their utilization
    - Improve the farmers social disposition Help the farmers to understand and adopt modern farming techniques for improved productivity
    - Agricultural education motivates the youths to take up farming as a profession
    - Relay farmers' problems to the government ministries, research institutes and universities.
    -Carry information from government ministries, universities and research institutes to farmers.
    (ii) Environmental degradation:
    - Desert encroachment exposes the soil to erosion
    - Erosion renders the soil unproductive and unsuitable for agriculture
    - Oil spillage pollutes the fishing and drinking water and kills all the aquatic life, thus reducing the profit of the fishermen
    - Drinking water for the farm family and their animals is polluted; thus exposing them to health risks
    - Air pollution by toxic fumes from industrial gases reduces the quality of air available to the farm family and their animals
    - Acid rains from air pollution cause soil acidity and destruction of crops
    - Deforestation exposes the soil to erosion agents
    - Overgrazing causes erosion and hard pans Bush burning damages the physical structure of the soil and reduces soil fertility
    - Air pollution reduces photosynthesis and thus reduces yield Plant population for livestock consumption is reduced
    (b) Problems associated with communal land tenure system:
    - Land cannot be pledged, sold or used as collateral by an individual
    - Those with means, but who are not members of the community, find it difficult to get land for farming activities/non-indigenes of the community cannot acquire land or have access to it
    - There is tendency to neglect parcels of useful land as no one readily considers it his/her interest to protect it from degradation.
    - It is characterized by litigations and mis-understanding Mechanized farming cannot be practised without permission of the whole community.
    - There is excessive land fragmentation over time - Allotted land can be revoked by new leadership
    - It does not encourage planting of permanent crops.
    (c) Components of an Incubator:
    Setter/Egg tray
    - Hatcher
    - Thermostat
    - Turner
    - Felt tray
    - Heat source
    - Vent/fan/air circulation unit
    - Hygrometer
    - Alarms
    - Insulators
    - Control unit
    - Thermometer.
    (d) Storage structures for farm produce: (i) Yam tubers: Yam barn (ii) Cowpea Seeds: Silo - Rhumbus (iii) Fresh fish: Cold room/freezer.

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