From what we know, we can confirm that the remote sensing technique described in the question is that of laser scanning.
This is, as described in the question, a remote sensing technique. This is a method most often used for land surveys, in which lasers are pointed at the area, which gather information in the form of 3D coordinates, which are later compiled to create detailed maps of the region.
Therefore, we can confirm that the remote sensing technique used by the PACUNAM project in order to map more than 800 square miles of the Maya Biosphere Reserve in Guatemala, is that of laser scanning.
To learn more about laser scanning visit:
https://brainly.com/question/7663692?referrer=searchResults
