Question

what is lichen. what is its function​

Answer 1

Answer:

Because lichens enable algae to live all over the world in many different climates, they also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, which we all need to survive.

$\huge\sf\underline{\underline{\red{❥︎ Thanks}}}$

Answer 2

Because lichens enable algae to live all over the world in many different climates, they also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, which we all need to survive.