A crustose lichen is

What is crustose lichens stage?

What is crustose lichens stage ?

Name the crustose lichen of the following

Write some examples of crustose lichens stage.

Assertion : In crustose lichen stage , by corroding action , soil formation occurs but this action is very slow. Reason : Crustose lichens produce carbonic acid which corrodes the rock.

These questions consist of two statements each printed as Assertoin and Reason. While answering these questions, you are requied to choose any one of the following four responses. If both Assertion and Reason are true and Reason is correct explanation of Assertion If both Assertion and REason are true but Reason is not correct explanation of Assertion If Assertion is true but Reason is false If both Assertion and Reason are false Assertion: In crustose lichen stage, by corroding action, soil formation occurs but his action is very slow Reason: Crustose lichens produce carbonic acid which corrodes the rock

Lichen is a

Name one crustose lichen

Define crustose lichen