Q1.The four most important factors that influence crop yield are soil fertility, availability of WATER, CLIMATE, and diseases or pests. These factors can pose a significant risk to farms when they are not monitored and managed correctly.Q2. Nomadic pastoralism is a form of pastoralism when LIVESTOCK are herded in order to find fresh pastures on which to graze. True nomads follow an irregular pattern of movement, in contrast with transhumance where seasonal pastures are fixedQ3. A Commercial crop is an agricultural crop which is grown for sale to return a profit. It is typically purchased by parties separate from a farm. The term is used to differentiate marketed crops from subsistence crops, which are those fed to the PRODUCER's own livestock or grown as food for the producer's family.Q4.ranch is an area of land, including various structures, GIVEN primarily to the practice of ranching, the practice of raising grazing livestock such as cattle and sheep most often applies to livestock-raising operations•hope it helps you..!! :3