Answers

2015-10-17T20:33:30+05:30
1Q: Plastic is used as storage containers because to retain the freshness of the food items even after long time and it is cheap and durable

2Q:coal is non-sonorous because it does not give any sound while beaten

PLS MARK IT AS THE BEST ANSWER.....
5 3 5
there will be a yellow button near thanks
near thanks button
not there
it will be there,if not then u are saying lies
i dont need best answer
2015-10-17T20:39:37+05:30
answer 1:
plastic containers are used as storage devices because :
1. plastic containers are durable.
2.plastic containers are lite in weight so they are used as containers.
3.it does not react for many things
4. plastic is used because it is of low costs.
5.it can keep the items fresh.

answer 2:
no coal is not sonorous because when we beat it with any other material it does not  produce sound so i conclude that it is not sonorous.

hope so answer is useful and plz mark it is best answer

5 5 5
another question
the answer is
unit of newton it is based up on meters and mass in kilometers
that all ntng else plz
I cant answer any more?