state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 General Knowledge Ecology and Environment Environment Problems
What is the meaning of PM10?
1
Particulate matter diameter having size greater than 10 microns
2
Particulate matter diameter having size of 10 microns
3
Particulate matter diameter having size less than or equal to 10 microns
4
Particulate matter diameter having size less than 10 millimeters