Question

Where do lichens grow?

Answer 1

Lichens are hardy organisms that colonize a wide range of surfaces. They commonly grow on bare rocks, exposed soil, tree bark, walls, roofs, and other man-made surfaces, and are especially common in extreme habitats, such as tundra and polar areas, where few other plants can survive. They can live without proper soil by obtaining nutrients from the air and directly from the substrate, and their acids help weather rocks into sandy soil, enabling later plant growth.