Awater well is a structure created to obtain water from deep in the geosphere. where is the well obtaining this water? a water well is a structure created to obtain water from deep in the geosphere. where is the well obtaining this water?

Well water draws from the sources of water beneath the Earth's surface. This type of water supply is known as "groundwater." 
Groundwater includes water that flows naturally from below the Earth's surface to the surface by way of springs. Some springs run entirely underground and do not break through the surface. Groundwater also includes water that is contained in a variety of porous materials that lie beneath the Earth's surface, such as silt, gravel, clay and sand. Water collects below ground in these porous materials into structures called aquifers. Generally speaking, well water collects into the well from these water-bearing structures. Wells are situated in the Earth to access the aquifer at a depth well below the surface.

The answer is c) organisms that are sensitive to changes in temperature would die.