Mina finds out that a company is pumping water from an aquifer near her home. what can mina conclude about the water being pumped?
a) the water being pumped is under a lot of pressure and comes from a confined aquifer.
b) the water being pumped is under a lot of pressure and comes from an unconfined aquifer.
c) the water being pumped is at atmospheric pressure and comes from a confined aquifer.
d) the water being pumped is at atmospheric pressure and comes from an unconfined aquifer.

Option D, The water being pumped is at atmospheric pressure and comes from an unconfined aquifer.

Explanation:

The water in unconfined aquifers is in direct contact of atmospheres as it is not overlaid by any rock or soil. Therefore, the water in unconfined aquifers is at atmospheric pressure.  

While a confined aquifer lies at greater depth than the unconfined aquifer and has overlaying rock and soil due to which the water is trapped under pressure.  

Since the water is being drawn from a place which lies in some residential area as Mina's home is near to it. . Hence there is high probability that it would be drawn from an unconfined aquifer under atmospheric pressure.