With reference to lichens, which of the following statements is/are correct? 1. Lichens are very good indicators of air pollution. 2. Lichens grow well in polluted areas. Select the correct answer using the code given below.

விடையைக் காட்டு & விளக்கம்

விடை: (B) Only 1

விளக்கம்

Lichens are highly sensitive to SO2, so they are bio-indicators of air pollution and do not grow in polluted areas.