Answers

2016-03-20T21:20:03+05:30
It is both as it helps us in many ways . excessive use of it is bad but limited use is like a friend for us. so it can be considered both friend and for.
I think it might be a friend for us
0
2016-03-22T11:05:26+05:30
To enable the students to know about fire.
To enable the students to know the causes of fire
To impart the students practical knowledge of putting off Fire.
To enrich the vocabulary of the students. 
To enable the students to make sentences of their own.

0