Question 4.Write a paragraph in your own words on each of the following.(a) Preparation of soil(b) Sowing(c) Weeding(d) Threshing

Answer: (a) Preparation of soil: Soil preparation is necessary before growing a crop. It involves tilling and loosening the soil. This allows the roots to penetrate deep in the soil and to breath easily even when they are deep. (b) Sowing: The process of putting seeds into the soil is called sowing. The tool used traditionally for sowing seeds is funnel-shaped. Nowadays a seed drill is used for sowing with the help of tractors. This tool sows the seed uniformly at a proper distance and depth. (c) Weeding: Some undesirable plants grow along with crop and these unwanted plants are called weeds. The process of removing these unwanted plants is called weeding. (d) Threshing: The process of separating the grain seeds from the chaff is called threshing.