Question

choose the correct answer. what is the primary focus of primary succession? to colonize and transform bare environments to increase pollution to replace the existing species

Explanation:

Primary succession occurs in lifeless areas where soil has not yet formed. Pioneer species colonize these bare environments (like volcanic lava - cooled areas or glacial moraines) and start transforming the environment by breaking down rocks (in the case of lichens on rocks) to form soil, which then allows other plants to grow. Increasing pollution is not a part of ecological succession processes. And primary succession is about starting from a bare area, not replacing existing species (that would be more relevant in secondary succession where there is already some biological legacy like soil with seeds etc.).

Answer:

to colonize and transform bare environments