How can using orders of magnitude help in assessing the sustainability of resource use?

Using orders of magnitude allows for quick comparisons between different resources or their usage levels, highlighting which resources are more abundant or scarce. This can inform decisions on sustainable practices by identifying areas where conservation is most needed.

A strong answer should directly address the approved learning objective to use orders of magnitude to judge the significance of resource data. (MS 2h). This question belongs to Using the Earth's resources and sustainable development within Using the Earth's resources and obtaining potable water, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to orders of magnitude, and keeps the wording specific to AQA GCSE revision.