Posted by **Jenny** on Tuesday, April 6, 2010 at 9:24am.

Waste created by man can be classified under Heading X (eg torn book, mouldy bread, rotten apple) and Heading Y (plastic bag, biscuit tin, broken bulb). What is Heading X and Heading Y?

- Science -
**bobpursley**, Tuesday, April 6, 2010 at 9:50am
Compostable materials

Non-compostable materials ?

- Science -
**SraJMcGin**, Tuesday, April 6, 2010 at 9:51am
Here, where I live X would go in the Garbage bin while Y would go in the Recycle bin. Perhaps that will give you a clue, about biodegradable, etc.?

Sra

- Science -
**Me**, Monday, January 7, 2013 at 11:42pm
a ship sails at an average speed 30km/h for 2 days. How far has the sip traveled

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