The answer to your outstanding question is 3
<span /><span>Rapid groundwater withdrawal also
referred to as long term water level declines caused by sustained groundwater
pumping, is a significant issue associated with groundwater use. Possible
consequences of rapid groundwater withdrawal include;</span>
<span>
</span>
(a) Reduced
surface water supplies
<span> (b) </span>Lowering
of the water table
<span> (c) </span>Water
quality concerns
<span> (d) </span>Land subsidence
The correct answer is C. biological theory.
Biology deals with the inner workings of our body - so, if something is the result of hormones and other physiological processes, then it will definitely be related to biology. The other options have more to do with the environment, rather than with the body itself.
Cyanobacteria are also very often referred to as "blue-green algae" because they are photosynthetic and aquatic in nature. They are important in the ecology as they help in forming the earth's oxygen atmosphere. Many oil deposits are attributed to the activities being performed by this group of microorganisms.
