Tectonic collisions affect evolution directly and indirectly. Indirect effects include changes in the atmosphere and climate, which thus changes selection pressures on living things, and direct effects include the creation of new habitat and the destruction of old, which also alters where living things can exist and what selection pressures are on them.
Work Step by Step
First consider what drives evolution: natural selection from among the genetic variants which exist, leading to adaptation. Then consider a list of the things altered by tectonic collision and how this could alter natural selection and adaptation.