_______ is a process that removes grains from the chaff.

Options

A. Harvesting
B. Winnowing
C. Threshing
D. Drilling

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the process that separates grains from chaff.

2. **Identifying the Options**: The options provided are harvesting, winnowing, threshing, and drilling.

3. **Analyzing Each Option**:
- **Harvesting**: This is the process of cutting mature crops from the field. It does not involve separating grains from chaff.
- **Winnowing**: This process uses air or wind to separate the lighter chaff from the heavier grains. The grains are thrown into the air, and the wind blows away the chaff, allowing the grains to fall back down.
- **Threshing**: This is the process of separating grains from the stalks of the plant, usually by beating or pounding.
- **Drilling**: This refers to a method of planting seeds in the soil and is not related to separating grains from chaff.

4. **Selecting the Correct Answer**: Based on the analysis, the process that specifically removes grains from the chaff is **winnowing**.

5. **Final Answer**: Therefore, the answer to the question is **winnowing**.

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