Define ‘water footprint’.

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Water footprint: (noun) the amount of fresh water utilized in the production or supply of the goods and services used by a particular person or group.

Basically, it's a measure of humanity's appropriation of fresh water in volumes of water consumed and/or polluted.

land

explanation:

australia is the flattest continent, and it has vast plains.

answerpeople organize large projects such as levee-building;