GEOLOGY

Detailed explanation-1: -Groundwater and surface water physically overlap at the groundwater/surface water interface through the exchange of water and chemicals. This exchange is a critical part of the hydrologic cycle.

Detailed explanation-2: -Rivers, lakes, canals, wells and groundwater are the sources of water other than rain.

Detailed explanation-3: -Springs are formed where the water table naturally meets the land surface, causing groundwater to flow from the surface and eventually into a stream, river, or lake. The water table level can vary in different areas and even within the same area.

Detailed explanation-4: -Answer and Explanation: Of the following, the statement about groundwater that is not true is underground aquifers holding about 99% of all liquid fresh water. About 30% of freshwater is stored in aquifers.