UPSC Civil Services Prelims 2023
Question 70 of 75Environment and Ecology
Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants. In the making of how many of the above are hydrofluorocarbons used?
AOnly one
BOnly two
COnly three
DAll four
Correct Answer
The correct answer is hidden
Explanation
7 words hidden ... applications and some fire protection contexts, but not as lubricants in the intended sense of this ... 11 words hidden