Under what circumstances doe the secondary succession begin ? Why does it proceed faster than primary succession ?

Explanation

### Step-by-Step Solution:

1. **Understanding Ecological Succession**:
- Ecological succession is the process through which the structure of a biological community evolves over time. It involves predictable changes in species composition in response to environmental changes.

2. **Types of Succession**:
- There are two main types of ecological succession: primary succession and secondary succession.
- **Primary Succession** occurs in lifeless areas where there is no soil or vegetation, such as bare rock, newly formed lava, or a newly created pond.
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