Answers

2014-09-21T15:29:46+05:30
Non- Reversible changes= Changes which cannot be reversed are called non- reversible changes. It is also called chemical changes. For example Burning of thread.
Reversible changes= Changes which can be reversed are called reversible changes. It is also called physical changes. For example melting of ice.
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2014-09-21T15:38:03+05:30
Reversible change sr those changes that can restore their previous state or condition. Like water turning to ice. R mostly physical changes............. Non Reversible changes r those which cannot restore their previous state. They have undergone a chemical change. Once this change happens it cant b altered back to its previous condition. Like burning a paper. These r mostly chemical changes..... :)
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