Agricultural Science 2013 Jamb Examination
Agricultural Science 2013 Jamb Examination
Question 1
The major reason which necessitates the expansion of agriculture is the increase in
Agriculture expands mainly due to increasing population which raises the demand for food and other agricultural products.
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Question 2
Which of the following groups of crops are mostly cultivated in the rainforest zone of Nigeria?
The rainforest zone of Nigeria supports crops like maize, cocoyam and cassava due to high rainfall and fertile soils.
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Question 3
In farm animals, gonads are organs associated with
Gonads (testes and ovaries) are reproductive organs responsible for producing gametes and hormones.
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Question 4
Which of the following combinations of farm inputs enhances the healthy growth of crop?
Irrigation provides water and fertilizer provides nutrients, both of which directly promote healthy crop growth.
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Question 5
When farmers engage in both plant and animal husbandry, he is practising
Mixed farming involves the simultaneous cultivation of crops and rearing of animals on the same farm.
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Question 6
The classification of soils into sand, loam and clay is largely determined by the percentage of
Soil classification is based on mineral particle sizes (sand, silt, clay) rather than organic matter or air content.
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Question 7
An example of igneous rock is
Basalt is an igneous rock formed from cooled lava, while marble and slate are metamorphic and dolomite is sedimentary.
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Question 8
The most devastating agent of erosion is
Run-off water causes the most severe erosion by washing away topsoil and degrading land productivity.
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Question 9
A farming practice that encourages the depletion of soil fertility is
Continuous cropping exhausts soil nutrients without giving the soil time to recover, leading to fertility loss.
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Question 10
The kind of tillage method most suitable for maize is
Minimum tillage conserves soil moisture and structure, making it suitable for maize cultivation.
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