Which is indicator of industrial pollution

Options

A. Biston belularia
B. Chamaeleon
C. Lichen
D. Bengal tiger.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks for an indicator of industrial pollution among the given options.

2. **Identifying the Options:**
The options provided are:
- A) Distant Bellularia
- B) Chameleon
- C) Lichen
- D) Bengal Tiger

3. **Defining Indicator Species:**
An indicator species is one that reflects the health of an ecosystem or the presence of certain environmental conditions, particularly pollution levels.

4. **Analyzing Each Option:**
- **Distant Bellularia:** Not commonly known as an indicator of pollution.
- **Chameleon:** Primarily a reptile known for its color-changing ability, not an indicator of industrial pollution.
- **Lichen:** Known to be sensitive to air quality and pollution levels, particularly sulfur oxides from industrial emissions.
- **Bengal Tiger:** A top predator, but not specifically an indicator of industrial pollution.

5. **Conclusion:**
Based on the analysis, lichens are sensitive to air pollution and their decline indicates poor air quality due to industrial emissions. Therefore, the correct answer is **C) Lichen**.

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