Paper 1 · People, Development and Environment
UGC NET June 2024 Re-Exam (26.08.2024) Shift-II
Which of the following is used to measure and monitor air pollution?
ARADAR
BSONAR
CLIDAR ✓ Correct
DSODAR
Correct answer: (C) LIDAR — LIDAR is used to measure and monitor air pollution, so that is the answer.
Explanation
★LIDAR is used to measure and monitor air pollution, so that is the answer.
★LIDAR stands for Light Detection and Ranging.
★It is a remote-sensing method that uses laser light.
★It can detect and measure particles and pollutants in the air.
★So it is used to monitor air pollution.
★RADAR, SONAR and SODAR use radio or sound waves for other purposes.
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