Question

why groundwater is an important source of water?​

Answer 1

Explanation:

Groundwater is water that gets collected beneath the surface of the earth. ... It reduces the water level and increases the salinity of the soil. Groundwater is often cheaper, more convenient and less vulnerable to pollution than surface water. Therefore, it is commonly used for public water supplies.

Answer 2

having no precedent

Definition of unprecedented

: having no precedent : novel, unexampled.