Why does secondary succession occur faster than primary succession?

answer from e2020

Soil with nutrients is already present.

Seeds are present from earlier occupants, brought in by wind, and/or germinate after fire.

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  

the match lol

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products