iAspirantsUPSC Prelims 2023 Question 5 of 100
2023Environment and Ecology
30. Consider the following:
1. Aerosols2. Foam agents3. Fire retardants4. Lubricants
In the making of how many of the above are hydrofluorocarbons used?
30. Consider the following:
1. Aerosols2. Foam agents3. Fire retardants4. Lubricants
In the making of how many of the above are hydrofluorocarbons used?