Question

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1.what is the main difference between primary succession and secondary succession?

Explanation:

Primary succession occurs in areas with no previous soil or life (e.g., newly formed volcanic islands), starting from bare rock. Secondary succession happens in areas where soil and some life - forms already exist, like after a forest fire or deforestation. The key difference is the starting condition of the environment.

Answer:

The main difference is that primary succession starts on bare rock with no soil or existing life, while secondary succession occurs in areas with pre - existing soil and some remaining life forms.