Agricultural Science questions and answers

Agricultural Science Questions and Answers

A comprehensive list of Agricultural science questions with answers to help you prepare for JAMB, WAEC, NECO, Post UTME exams.

101.

What are the main differences between monocot and dicot plants?

A.

Monocots have parallel leaf veins, while dicots have branched leaf veins

B.

Monocots have flower parts in multiples of three, while dicots have flower parts in multiples of four or five

C.

All of the above

D.

Monocots have fibrous root systems, while dicots have taproot systems

Correct answer is C

Monocots and dicots are differentiated by several characteristics. Monocots have parallel leaf veins, while dicots have branched leaf veins. This is due to the different growth patterns of the two types of plants. Monocots have flower parts in multiples of three, while dicots have flower parts in multiples of four or five. This is due to the different evolutionary paths of the two types of plants. Monocots have fibrous root systems, while dicots have taproot systems. This is due to the different needs of the two types of plants, with monocots typically being grasses and cereals that benefit from a fibrous root system, and dicots being broad-leaved plants that benefit from a taproot system.

102.

The following are necessary operations in maize cultivation except?

A.

Weeding

B.

Thinning

C.

Nursery practices

D.

Fertilizer application

Correct answer is C

Maize is cultivated by direct seeding, hence, nursery practice is not needed in maize cultivation.

 

103.

The main aim of mechanized agriculture is

A.

Reducing maturation time for crops

B.

Decreasing number of pests

C.

Having a large land area for cultivation

D.

Reducing cost of production

Correct answer is C

The major objective of mechanized agriculture is to have a large land area for cultivation.

104.

Which of the following farm practices is not mechanized?

A.

Planting

B.

Fertilizer application

C.

Bush clearing

D.

Transplanting

Correct answer is D

Transplanting is not a mechanized farm practice, i.e it does not involve the use of machinery.

 

105.

What is soil conservation, and why is it important in agriculture?

A.

Soil conservation involves the removal of topsoil for agricultural purposes

B.

Soil conservation refers to the preservation and sustainable management of soil resources

C.

Soil conservation aims to maximize crop yields through intensive farming practices

D.

Soil conservation focuses on increasing soil fertility through the use of chemical fertilizers

Correct answer is B

Soil conservation is the practice of protecting and managing the soil to prevent erosion, degradation, and loss of fertility. It involves implementing various techniques and practices to ensure the long-term sustainability and productivity of agricultural lands.

106.

Which of the following surveying equipment is used for measuring angles during farm surveying?

A.

Theodolite

B.

Measuring tape

C.

Gunter's chain

D.

Abney level

Correct answer is A

Theodolite is a basic surveying instrument which is used to measure horizontal and vertical angles.

 

107.

Which of the following is the correct order for land preparation?

 

A.

Land clearing → ploughing → harrowing → ridging

B.

Land clearing → harrowing → ploughing → ridging

C.

Land clearing → ploughing → ridging → harrowing

D.

Land clearing → harrowing → ridging → ploughing

Correct answer is A

Land clearing

Ploughing

Harrowing

Ridging

 

108.

What is subsistence agriculture?

A.

Export-oriented agricultural production

B.

Intensive farming using advanced technology

C.

Farming for self-sufficiency and survival

D.

Large-scale commercial farming

Correct answer is C

Subsistence agriculture refers to a type of farming where the primary purpose is to meet the food and basic needs of a family or community. It is characterized by small-scale farming practices with limited use of modern technology and resources. The produce from subsistence agriculture is primarily consumed by the farmer and their family, with little or no surplus for sale.

109.

Which of the following best describes agricultural marketing?

A.

The process of producing agricultural goods

B.

The transportation of agricultural products to consumers

C.

The storage and preservation of agricultural goods

D.

The promotion and selling of agricultural products

Correct answer is D

Agricultural marketing refers to the activities involved in the promotion and selling of agricultural products. It encompasses various processes, such as market research, product promotion, pricing, distribution, and sales.

110.

Which of the following is a common problem in agricultural economics and extension?

A.

Inadequate market infrastructure

B.

Excessive government regulations

C.

Overreliance on chemical inputs

D.

Lack of access to modern technology

Correct answer is D

Agricultural economics and extension deal with the application of economic methods to optimizing the decisions made by agricultural producers. A common problem in this field is the lack of access to modern technology. This can hinder the efficiency and productivity of agricultural practices. Excessive government regulations, overreliance on chemical inputs, and inadequate market infrastructure can also be challenges in agriculture, but they are not specific to agricultural economics and extension.


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