Insulation of liquid surface can be achieved by __________ on top of its surface.
Question: Insulation of liquid surface can be achieved by __________ on top of its surface.
[A].
floating hollow polypropylene spheres
spraying alumina powder
putting cement
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.