What is the main source of groundwater?

Answer

**Step-by-Step Solution:**

1. **Understanding the Source of Water**: The ultimate source of water on Earth is rain. Rainfall is essential as it replenishes various water bodies such as rivers, lakes, and ponds.

2. **Distribution of Water**: When it rains, water is distributed evenly across the Earth's surface. This distribution is crucial for maintaining the balance of water in different ecosystems.

3. **Infiltration into the Ground**: After rainfall, some of the water seeps into the ground. This process is known as infiltration, where water moves through the soil and into the underground layers.

4. **Storage of Groundwater**: The water that seeps into the ground gets stored in underground reservoirs known as aquifers. This stored water is what we refer to as groundwater.

5. **Extraction of Groundwater**: Groundwater can be accessed and extracted using various methods, such as hand pumps and wells. These methods allow us to utilize groundwater for various daily needs, including drinking, irrigation, and sanitation.

6. **Conclusion**: Therefore, the main source of groundwater is rain, as it replenishes the underground water reservoirs through the process of infiltration.

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