The substances like coal, have low ignition temperature and so need strong heating to catch fire.

Explanation

**Step-by-Step Solution:**

1. **Understanding Ignition Temperature:**
- Ignition temperature is defined as the minimum temperature at which a substance catches fire and undergoes combustion.

2. **Analyzing the Statement:**
- The statement claims that coal has a low ignition temperature and needs strong heating to catch fire.

3. **Correcting the Statement:**
- In reality, coal has a high ignition temperature. This means that it requires a significant amount of heat to reach the temperature at which it will ignite.

4. **Conclusion:**
- Therefore, the original statement is false. Coal does not have a low ignition temperature; it has a high ignition temperature, which means it needs strong heating to catch fire.

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