Answer:
The correct answer is c. 30%
Explanation:
Groundwater is that found below the earth's surface. Groundwater is contained in aquifers. An Aquifer is a geological formation or a part of it, consisting of a permeable material capable of storing a certain significant amount of water. Aquifers can consist of different material, such as sedimentary permeable rocks such as sand stones or mud stones.
In general, it maintains a temperature very similar to the annual average in the area, therefore, in arctic regions, it can freeze.
Groundwater represents around 30% of the world's fresh water.
The correct answer is c. 30%
