Question

27 pls answer this question

Answer 1

hey mate

here is ur answer


1) water is used as effective coolant.


2) staem engine used for running train and machines is an example .

i hope it helps you

be brainly.

Answer 2

dear friend your answer is as follows:
1) water is used as an effective coolant.
2) steam engine used for running train and Machine is an example.
hope this helps you and please mark my answer as brainlist