Name a substance whose resistance decreases with the increase in temperature.

Explanation

**Step-by-Step Solution:**

1. **Understanding Resistance and Temperature Relationship**:
- In general, most conductors (like metals) have resistance that increases with temperature. However, some materials behave differently.

2. **Identifying the Type of Material**:
- The question asks for a substance whose resistance decreases with an increase in temperature. This behavior is typically seen in semiconductors.

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