Resources and Climate

The Climate of the deep sea is obviously very cold, dark, and lacks much physical feature and/or plant life (as plants require sunlight to survive). Many deep sea organisms, then, rely on what is called Marine Snow - a continuous shower of mostly non-living organic material (such as the bodies of dead organisms and fecal matter) which originates mostly in the photic zone and rains down upon the lower zones of the ocean depths, supplying the organisms down there with a consistent source of sustenance.