The greatest time frame for a short-term environmental change is typically measured in days, while changes in minutes reflect even quicker processes. Comparatively, periods extending to hundreds or thousands of years represent long-term changes. Hence, in days stands as the best option for short-term changes. ;
The greatest time frame for short-term environmental changes is represented by the option 'in days.' These changes can occur within a few days or even minutes but are predominantly recognized as short-term if they fall under days. Longer time frames such as hundreds or thousands of years are considered long-term environmental changes.
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