Which tectonic process can most directly form an ocean trench?

They are formed by Convehent plate boundaries

Tectonic plate convergence; when two places converge with one another.

A Geographic Information System (GIS) is a system designed to capture, store, and analyze geographic data. We currently have 2 sets of information:
i) Points of higher density of population
ii) Current location of parks
These can be used as inputs for the GIS to analyze the best possible locations for new parks or the construction of routes that will make it easier for residents fo the city to have access to them.