Which sensor is most suitable for mapping vegetation health?
A. Thermal infrared sensor
B. Radar sensor
C. Multispectral sensor
D. SONAR
Answer: Option C
Solution (By Examveda Team)
Multispectral sensors capture data in various visible and near-infrared bands.They are widely used for vegetation analysis and monitoring health via indices like NDVI.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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