Botany - Biological Classification Question with Solution | TestHub

Lichens are well known as sensitive indicators of air pollution, particularly for sulphur dioxide. The extreme sensitivity of lichens to SO₂is partially related to their ability to absorb more SO₂for a given concentration than typical vascular plants. Air pollutants adversely impact not only growth, reproductive potential, and morphology, but also a wide variety of physiological processes, which also becomes reflected in ultra-structural changes.