JAMB Agricultural Science Past Questions & Answers - Page 9

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.