Margaret’s family of four was asked to be a part of a research project on the division of labor and daily chores. They were each asked to keep a detailed account of their activities for one week. This would be an example of a

time use study

Explanation:

The time-use study is determined as a study or statistical survey that generally aims to report specific data or information related to how average individuals used to spend their time. The time-used study is often related to 'development policy' as it shows the specific amount of time that people usually spend or devote to various activities including paid work, self-care activities, and unpaid work (household chores), etc.

The correct answer is a time-use study.

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the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.