Exactly what the person above said!
Body’s of water i think
Dead zones occur because of a process called eutrophication, which happens when a body of water gets too many nutrients, such as phosphorus and nitrogen. ... Human activities are the main cause of these excess nutrients being washed into the ocean.
There is a
transient electro-physiologic dysfunction of the reticular activating system in
the upper midbrain caused by rotation of the cerebral hemispheres on the fixed
brainstem. -The CSF cushions the brain from light trauma in times of more
severe impact, the forces on the brain may be linear, angular, or rotational, in
rotational movement, the head turns around its center of gravity: this is the
primary mechanism causing concussion.
Plankton they are the base for marine life