In a xerarch succession, who secrete acids to dissolve rock?

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Editor">Editor Staff asked 4 days ago

In a xerarch succession, who secrete acids to dissolve rock?
 
(a) Shrubs
 
(b) Herbs
 
(c) Mosses
 
(d) Lichens
 
I have been asked this question in final exam.
 
My doubt is from Ecosystem in portion Ecosystem of Biology – Class 12

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Editor">Editor Staff answered 4 days ago

Correct option is (d) Lichens
 
The explanation is: The sequence of successional stages occurring on bare rocks is known as xerarch succession. In a xerarch succession, the pioneering species lichens release acids to dissolve rocks. This helps in weathering and soil formation.