Arun was doing a science activity. While doing this activity he made a mistake in writing his observation. Which among the following is wrong in the following table?
| Substances put in water | Soluble / Insoluble |
| 1. Sugar | Soluble |
| 2. Sand | Soluble |
| 3. Tea leaves | Insoluble |
| 4. Talcum powder | Insoluble |
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