If their data supported their hypothesis, then they would make a conclusion.
The superscript of element Cl⁻ indicates it is a negative ion.
Answer:
Habitat/Environment. Either can be right
Marine biologists study changes in the ocean. so they will look at the chemical composition of deep waters and see how consecrated the oxygen is. They will also study the movements of the plates because when planted move it usually makes new food for deep life
they will also check animal concentrations in certain areas.
Another thing they do is track animal movements. this could be by putting a tracker on a whale or a shark or anything and watching its depths it goes or watching the distance it goes in a day.
... During this process, plants cleave the carbon from the two oxygen molecules and release the oxygen back into the surrounding environment. Plants are thus primarily responsible for the presence of atmospheric oxygen.
PLS REPHRASE a bit SO YOU DONT GET BUSTED FOR PLAGIARISM