Question

level 2015-2020
yearly rainfall (mm)
aquifer water level (m)
year
2015
2016
2017
2018
2019
2020
yearly rainfall
aquifer water level
what is the most likely explanation for what is happening to the aquifer?

Explanation:

The aquifer water - level is decreasing over the years despite fluctuations in rainfall. The most likely reason is over - extraction of water from the aquifer. Rainfall recharge is not sufficient to offset the amount of water being taken out.

Answer:

Over - extraction of water from the aquifer is the most likely explanation for the decline in the aquifer water level.