E. Answer the following questions in one word or a sentence.
1. Define winnowing.
2. Why is levelling done?
3. What is green manure?
4. How is the cultivator useful for a farmer?
5.What is the advantage of transplantation?
Answers
Answer:
Ans.1) Winnowing is done to separate the grains frim the husk.
Answer:
1. to blow through grain in order to remove its outer covering.
2.Levelling in surveying. Levelling is a process of determining the height of one level relative to another. It is used in surveying to establish the elevation of a point relative to a datum, or to establish a point at a given elevation relative to a datum.
3.a fertilizer consisting of growing plants that are ploughed back into the soil.
4. Farmers use cultivators for ploughing to loosen the upper surface of the soil, also used for removing unwanted plants from land and also used for distributing the equal amount of fertilizer in each part of the land.
5.Transplanting offers great savings in seeds costs because the quantity of seeds used in the greenhouse is significantly lower than in direct seeding. Transplanted crops mature more uniformly, and allow for the luxury of a nearly 100% stand.