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QusWhich sensor is commonly used to measure air quality in IoT applications? Qus IoT एप्लीकेशन में एयर क्वालिटी मापने के लिए आमतौर पर किस सेंसर का यूज़ किया जाता है?


A. MQ-135
B. BMP180
C. DHT22
D. Ultrasonic sensor


Solution
A. MQ-135



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