Question
Which are sensitive to SO2 pollution?
- Mosses.
- Lichens.
- Algae.
- Ferns.
✓
Answer
- Lichens.
Explanation:
Sulphur dioxide is a gas that dissolves in water and produces acidic ions that are highly reactive. When lichen absorb this gas, it disrupts photosynthesis, inhibits reproduction and other activities.
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