Correct ans us ( b)


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Answer:

Introduction:
Flouring machines are used in agriculture to process crops and separate the grain from the chaff. This process is important for harvesting and obtaining the edible portion of the crop. Among the options provided, the combine is the most suitable flouring machine for both harvesting the crop and beating out the grain from the chaff.

Explanation:

1. Combine:
A combine is a versatile machine that can perform multiple functions in the agricultural process. It is equipped with features that allow it to harvest crops and separate the grain from the chaff. The combine has a cutting mechanism that cuts the crop at the base and an internal threshing system that separates the grain from the chaff.

2. Thresher:
A thresher is a machine specifically designed to separate the grain from the chaff. It does not have the ability to harvest the crop. Threshers are used after the crop has been harvested to remove the grain from the plants.

3. Harvester:
A harvester is a machine used specifically for harvesting crops. It is not designed to separate the grain from the chaff. The harvested crop needs to be processed further using a thresher or a combine to obtain the grain.

4. Harrow:
A harrow is a machine used for soil preparation and weed control. It is not involved in the process of harvesting or separating the grain from the chaff.

Conclusion:
Among the given options, the combine is the most suitable flouring machine for both harvesting the crop and separating the grain from the chaff. It is a versatile machine that combines the functions of a harvester and a thresher, making it efficient and effective in the agricultural process.