Which remote sensing technique can penetrate dense vegetation to detect underlying ground features?
A. Optical imaging
B. LiDAR
C. Thermal imaging
D. Multispectral imaging
Answer: Option B
Solution (By Examveda Team)
LiDAR uses laser pulses that can penetrate forest canopy and provide detailed ground surface models beneath vegetation.It is widely used in forestry and geological mapping.This Question Belongs to Geological Engineering >> Remote Sensing And GIS In Geological Engineering
What is the primary principle behind remote sensing?
A. Collecting data by direct contact
B. Observing Earth from a distance using sensors
C. Drilling to collect soil samples
D. Using underground radar
Which of the following is an active remote sensing technique?
A. Aerial photography
B. LiDAR (Light Detection and Ranging)
C. Thermal infrared imaging
D. Multispectral scanning
Which GIS component is responsible for spatial data analysis?
A. Hardware
B. Software
C. Data
D. People
In remote sensing, what does spectral resolution refer to?
A. Size of the area covered
B. Ability to distinguish between different wavelengths
C. Number of pixels in the image
D. Time between image acquisitions
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