|
|
|
|
|
|
by tsimionescu
1411 days ago
|
|
|
> Mine is: "if animals make it, and it is unmade (or remade, or recycled, or broken down [0]) by something else, then this is 'natural'." Does this mean that at some point in time lignin was artificial by your definition, as it couldn't be broken down by anything for a few million years as far as we can tell? |
|
|