Phytoplankton feed on the nutrients brought up by this type of deep cold water current

A water column is a form of precipitation which brings nutrients like nitrogen, carbon dioxide, iron and phosphorus. As phytoplankton create their own food source throw photosynthesis by converting sunlight into energy, a better word than feed on the nutrients, is absorb, as they do not gain energy from the nutrients, but the necessary nutrients allow for the phytoplankton to photosynthesize.

The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water