a)- It's a method that has appeal to rural farmers because it allows food to be produced (with very little cost) in the rural areas, it lessens their need to find transportation to a city, and it creates opportunity to continue living in a village (where housing and land are much more affordable).Ex:- A family has only ONE cow to give milk only for that family. A farmer grows only enough wheat to make bread for his or her Family.B)- Commercial farming is the farming method in which plant and livestock production is PRACTICED with the intention of selling the products on the market. ... Subsistence agriculture is practiced in a small area only. On the other hand, a large area is necessary to practice commercial agriculture.It's have 6 types;- Mixed crop and livestock.Dairy farming.Grain farming.Livestock ranching.Mediterranean agriculture.Commercial gardening and fruit farming.C)- manual farming.Most agricultural activities involve manual material-handling tasks (e.g., lifting, lowering, pulling, pushing and carrying of heavy loads), resulting in musculoskeletal strains, falls, spinal injuries and so on.d)- Mechanised agriculture is the process of using agricultural machinery to mechanise the work of agriculture, greatly increasing farm worker productivity. In modern times, POWERED machinery has replaced many farm jobs formerly carried out by manual labour or by working animals such as oxen, horses and mules.E)- Organic farming is an agricultural system which originated early in the 20th century in reaction to rapidly changing farming practices. Certified organic agriculture accounts for 70 million hectares globally, with over half of that TOTAL in Australia. F)- "Arable land is the land under temporary agricultural crops (multiple-cropped areas are counted only once), temporary meadows for MOWING or pasture, land under market and kitchen gardens and land temporarily fallow (less than five years). The abandoned land resulting from shifting cultivation is not included in this category. Data for 'Arable land' are not meant to indicate the amount of land that is potentially cultivable.