It is a measurement technique that can acquire millimeter-level of detail from the surrounding area. It allows rapid, automatic and periodical estimates of many important forest inventory attributes. It measures the surrounding three- dimensional (3D) space. It is a satellite-based technique that ensures precise standard surveys. Which of the above given statements are true ? - Statement 1: Terrestrial laser scanning (TLS) is a ground-based technology that uses laser beams to capture detailed 3D information, often achieving millimeter-level accuracy. This statement is true. - Statement 2: TLS is widely used in forestry and ecological monitoring to rapidly and automatically collect data on tree structure, biomass, and other inventory attributes over time, enabling periodical estimates. This statement is true. - Statement 3: TLS measures the surrounding environment by emitting laser pulses and recording the time it takes for the pulse to return after hitting an object, thereby mapping the three-dimensional space as a point cloud. This statement is true. - Statement 4: Terrestrial laser scanning is a ground-based technique, deployed from tripods, vehicles, or handheld devices. It is not a satellite-based technique. Satellite-based remote sensing technologies like satellite LiDAR or optical imaging are distinct. This statement is false.