(Please vote me Brainliest if this helped!)
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.
D. three-quarters of earth's water is fresh water.
Answer: b) vent from which magma ascends
