Khadins, Bundhis, Ahars and Kattas are ancient structures that are examples for

Options

A. grain storage.
B. wood storage.
C. water harvesting.
D. soil conservation.

Explanation

**Step-by-Step Text Solution:**

1. **Identify the Structures**: The question mentions Khadins, Bundhis, Ahars, and Kattas. These are ancient structures found in different regions of India.

2. **Understand Their Purpose**: Each of these structures serves a specific purpose related to natural resource management. They are primarily associated with the management of water resources.

3. **Research Each Structure**:
- **Khadins**: These are traditional water harvesting structures found in Rajasthan. They are designed to capture and store rainwater.
- **Bundhis**: These are earthen dams found in Madhya Pradesh and Uttar Pradesh, used for water conservation and irrigation.
- **Ahars**: These are water harvesting systems found in Bihar, used to store rainwater and recharge groundwater.
- **Kattas**: These are small water reservoirs found in Karnataka, used for irrigation and water storage.

4. **Conclusion**: Since all these structures are primarily used for the purpose of collecting and conserving water, they are examples of water harvesting techniques.

5. **Final Answer**: The correct answer to the question is "Water Harvesting."

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