Read the following statements and choose the correct option.

Statement 1 :- Lichens , a pioneer species, secrete acids to dissolve the rock , helps in weathering and soil formation.
Statement 2 :- The pioneer species remains stable as long as the environment remains unchanged.

Only statement 2 is incorrect

Pioneer species are those that invade a barren area. This is followed by another seral stage.
A climax community is the result of gradual , slow and predictable change in the species composition of an area. The climax community species remains stable as long as the environment remains unchanged.