Agricultural Science Questions and Answers

Cost Price (N) = 60000
Salvage value (N) = 18000
Annual depreciation (N) = 4200
Useful life (Years) = 10
The formula to calculate the total depreciation is:
Total depreciation = (Cost Price - Salvage value) / Useful life
Now, let's plug in the values:
Total depreciation = (60000 - 18000) / 10
Total depreciation = 42000 / 10
Total depreciation = 4200
Therefore, the total depreciation represented by Z in the table is N 42,000.

The primary benefits of agricultural extension services include increased crop diversity and yield, enhanced knowledge and skills of farmers, and improved market access for agricultural products. However, the preservation of traditional farming practices is not a primary benefit of agricultural extension services. Therefore, the correct answer is 'Increased crop diversity and yield'.

Rubber is not considered a component of soil. Soil is composed of mineral particles, organic matter, water, and air spaces. The mineral particles include sand, silt, and clay, which provide the physical structure of the soil.

A cattle pasture is an example of a pasture commonly used in agriculture. It is an area of land specifically designated for grazing cattle. Cattle pastures consist of various grasses and forage crops that provide the necessary nutrition for the cattle to graze on.

A potential disadvantage of mass media for farmers is limited access to information. This is particularly true in rural areas where access to the internet and other forms of mass media may be limited. While mass media can be a powerful tool for disseminating information, it is not always accessible or relevant to all farmers, particularly those in remote or underserved areas.

The primary purpose of an agricultural extension service is to offer training and advisory services to farmers. Agricultural extension services provide education, information, and support to farmers and rural communities to enhance their agricultural practices, productivity, and livelihoods. They offer training programs, workshops, demonstrations, and on-farm advisory services to help farmers adopt new technologies, improve their farming techniques, manage pests and diseases, and enhance sustainable agricultural practices.

Cost Price (N) = 20000
Salvage value (N) = 5000
Annual depreciation (N) = 1000
Total depreciation = 15000
The formula to calculate the useful life is:
Useful life = (Cost Price - Salvage value) / Annual depreciation
Now, let's plug in the values:
Useful life = (20000 - 5000) / 1000
Useful life = 15000 / 1000
Useful life = 15 years
Therefore, the useful life represented by Y in the table is 15 years.

Nitrosomonas is the bacterium responsible for the first step in this conversion process, where it oxidizes ammonium compounds to nitrites. This conversion is essential as it prepares the nitrogen compounds for the subsequent steps in the nitrogen cycle.

Farm owner is the one who bears the risk of production in agricultural business, as they have the ultimate responsibility for the business's success or failure and make critical decisions that impact the farm's performance and profitability.

The foetus obtains dissolved oxygen and nutrients from the dam through the parts labelled III and IV