Answers

2015-08-16T20:12:34+05:30
Yes bcoz sometimes it can harmful very much but is also very essential in life
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2015-08-16T20:20:58+05:30
Yes, i agree with that statement:
friction is good 
we can walk 
we can write something with the help of friction 
friction is bad 
if there is no friction we don't pedal the cycle continously 
we can easily push or pull furniture and other things from one place to other place
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