What does supervised classification in remote sensing involve?
A. Classifying pixels based on random assignment
B. Using known training areas to classify unknown pixels
C. Using only infrared bands for classification
D. Classifying images manually without software
Answer: Option B
Solution (By Examveda Team)
Supervised classification uses training data from known land cover types to classify other pixels automatically.This improves accuracy by leveraging prior knowledge.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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