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?

Compostable materials

Non-compostable materials ?

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

a ship sails at an average speed 30km/h for 2 days. How far has the sip traveled

To determine the classification of waste under Heading X and Heading Y, we can analyze the examples given for each heading:

Heading X examples: torn book, mouldy bread, rotten apple.
Heading Y examples: plastic bag, biscuit tin, broken bulb.

By examining these examples, we can identify some common characteristics for each heading.

Heading X seems to encompass organic waste or biodegradable materials that are generally derived from natural sources. In this case, torn book, mouldy bread, and rotten apple fall under this category.

Heading Y, on the other hand, appears to include non-biodegradable waste or materials that are typically man-made or synthetic. Examples like plastic bag, biscuit tin, and broken bulb fit into this category.

It is important to note that the exact headings X and Y may vary depending on the specific waste classification system or guidelines being referred to. It is recommended to consult an appropriate waste management or environmental agency for the accurate classification in a given context.