Fill in the following blanks with suitable words:
The rainwater can be used to…..the groundwater.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks us to fill in the blank in the sentence: "The rainwater can be used to…..the groundwater." We need to identify a suitable word that describes what rainwater can do to groundwater.

2. **Contextual Analysis**: From the video transcript, we learn that rainwater can be harvested and used to benefit groundwater. The transcript mentions the concept of increasing or enhancing the groundwater level.

3. **Identifying the Key Concept**: The key concept discussed is the idea of "recharging" groundwater. This means that rainwater can be collected and used to replenish or restore the groundwater levels that may have decreased due to usage.

4. **Filling in the Blank**: Based on the analysis, we can fill in the blank with the word "recharge." Therefore, the complete sentence reads: "The rainwater can be used to recharge the groundwater."

5. **Final Answer**: The suitable word to fill in the blank is "recharge."

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