Question

Lichens indicate $SO_{2}$pollution because they

• A. Show association between algae and fungi
• B. Grow faster than others
• C. Are sensitive to $\mathbf{S}\mathbf{O}_{\mathbf{2}}$
• D. Flourish in $SO_{2}$rich environment

Answer 1

Answer: (C)

Are sensitive to $\mathbf{S}\mathbf{O}_{\mathbf{2}}$