Why do some life activities strengthen the substrate while others weaken it?

Relief and Climate is what controls the landscape development. We will focus on climate because this is where the life activity included. Some activity weakens substrate is for burrowing and wedging while some strengthens substrate is for binding. This is because of the time, evolution cannot occur without time and continue response to agents with during long periods.

Ithink its false. hope this : )

Ithink its c hope it : )