Ecological succession on a land after forest fire isOptions :Primary successionSecondary successionTertiary successionQuaternary succession

Understanding the Options

1. Primary Succession: This type of succession occurs in lifeless areas where there is no soil. It begins on bare rock or after a severe disturbance that removes all biological life.

2. Secondary Succession: This occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact. Common examples include areas that have been disturbed by events like forest fires, floods, or human activities.

3. Tertiary Succession: This term is less commonly used in ecological contexts and is not recognized as a standard classification. It may sometimes refer to stages of succession beyond secondary succession, but it is not well-defined.

4. Quaternary Succession: Like tertiary succession, this term is not widely used in ecology. It may refer to changes over a longer geological time scale but does not pertain to ecological succession in the conventional sense.

Final Answer

The correct answer is Secondary succession. After a forest fire, the ecosystem is disturbed but the soil remains intact, allowing for the regrowth of plants and the return of animal species, which characterizes secondary succession.