answer from e2020
Soil with nutrients is already present.
Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.
Answer:
Due to remains of primary succession, secondary succession occur faster
Explanation:
The secondary succession usually takes place in the ecosystem after the primary succession has taken place and got disrupted somehow leaving behind some of its traces. A secondary succession is faster than a primary succession due to the following reasons –
a) Soil is readily available
b) The remains of trees such as seeds, roots and other vegetative organs of plant