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
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.?
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