administrators Reply Quote

Answer : 1 Air pollution Explanation : Answer: A) Air pollution Explanation: 1. Lichens are plants that grow in exposed places such as rocks or tree bark. 2.  Lichens are widely used as environmental indicators or bio-indicators. They can be used as air pollution indicators, especially of the concentration of sulfur-di-oxide in the atmosphere.   3. They need to be very good at absorbing water and nutrients to grow there.

Click here to see the full blog post