What do you mean by non-living?

Answer 1

"Non-Living" is the opposite of a living thing, which needs three things to live.

1. Water

2. Energy/Nutrients

3. Suitable Physical Conditions

So anything that you would want to classify as "non-living" would have to exclude one or more of these requirements

Here is a handy link which should answer any left questions

http://nbsp.sonoma.edu/resources/teachers_materials/life-science_01/02Whatislife/index.htm