Answers

2016-04-10T17:12:45+05:30
They are :-
1)it helps us in gaining scientific knowledge
2)it helps in making clothes like jackets made up of synthetic material.
3)it helps in making military equipment like grenade, gun powder e.t.c.
4)it helps in making construction things like cement.
5)it helps in purifying minerals like gold, copper, aluminum e.t.c 
0
plzzz mark it as brainlist
ok
any more ans