A comprehensive list of Agricultural science questions with answers to help you prepare for JAMB, WAEC, NECO, Post UTME exams.
Which of the following is a primary function of the digestive system?
Regulation of body temperature
Oxygen transport
Production of hormones
Absorption of nutrients
Correct answer is D
The primary function of the digestive system is the absorption of nutrients. The digestive system breaks down food into smaller molecules through processes such as mechanical digestion (chewing) and chemical digestion (enzymes breaking down food).
How are farm animals classified based on their feeding habits?
By their reproductive strategies
By their feeding preferences
By their geographical distribution
By their size and weight
Correct answer is B
Farm animals are commonly classified based on their feeding preferences. This classification categorizes animals into different groups based on their dietary habits and the type of feed they consume.
What does the scale of preference represent in agricultural decision-making?
The ranking of available choices based on personal preference
The availability of resources for agricultural production
The total cost of implementing different agricultural practices
The market demand for agricultural products
Correct answer is A
The scale of preference represents the ranking of available choices based on personal preference in agricultural decision-making. When making choices in agriculture, farmers and agricultural stakeholders evaluate different options and rank them according to their preferences and goals.
Which of the following is an example of farm machinery used for planting seeds?
Combine harvester
Harrow
Tractor
Seed drill
Correct answer is D
A seed drill is an example of farm machinery used for planting seeds. It is a device or implement designed to precisely sow seeds at a consistent depth and spacing.
Apiculture
Aquaculture
Sericulture
Horticulture
Correct answer is D
Horticulture is a branch of agriculture that focuses on the cultivation, management, and production of fruits, vegetables, and ornamental plants. It includes practices related to the growing, harvesting, processing, and marketing of horticultural crops. Horticulturists may specialize in areas such as fruit production, vegetable farming, floriculture (ornamental plants and flowers), or nursery operations.
Which of the following products is not a primary forest product?
Plup
Fuelwood
Timber
Mushroom
Correct answer is A
Pulp is a processed material derived from wood, whereas timber and fuelwood are directly harvested from forests, and mushrooms are fungi found in forest ecosystems.
The farming system generally recommended for farm settlement scheme is
Pastoral farming
Mixed cropping
Continuous cropping
Mixed farming
Correct answer is D
Mixed farming is the farming system generally recommended for farm settlement schemes. Mixed farming involves the cultivation of different crops and the rearing of various livestock on the same farm. It is a diversified farming approach where farmers grow crops and raise animals simultaneously.
A major reason for encouraging afforestation in arid regions of West Africa is to
Serve as forest reserve for wildlife conservation
Serve as windbreak to check desert encroachment
Increase timber production for export
Provide shade for crops sin taungya farming
Correct answer is B
Encouraging afforestation in arid regions of West Africa is primarily done to serve as a windbreak and check desert encroachment mitigating the impact of desertification and protecting fertile lands from wind erosion.
Post-planting operations in cocoa plantation include
I. Rogueing
II. Stumping
III. Mulching
I and II only
I, II and III
I and III only
II and III only
Correct answer is B
Post-planting operations in a cocoa plantation include rogueing, stumping, and mulching. Rogueing involves removing plants that are diseased or not growing properly. Stumping is the process of cutting back the tree to a short stump to encourage new growth. Mulching involves covering the soil around the plants with organic material to conserve moisture, suppress weeds, and improve soil fertility.
The diagrams below illustrate different sources of farm power. Study them and answer the question.
Which of the illustrated sources of farm power decrease in efficiency due to constant use?
II and III only
I and III only
I and II only
I, II and III
Correct answer is D
I, II and III will decrease in efficiency due to constant use.
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