Q21
What is the main advantage of using LiDAR in geological engineering?
A.
Detecting thermal variations
B.
Producing high-resolution 3D terrain models
AnswerC.
Measuring soil moisture content
D.
Mapping spectral reflectance
Answer: Option B
Solution
Answer: Option B
Solution:
LiDAR (Light Detection and Ranging) provides precise 3D measurements of surface topography by measuring laser pulse returns.This is critical for detailed terrain modeling, landslide detection, and infrastructure planning.