For horseisle, the answer is water
/////Dreygon on roan\\\\\
Hydrology is the study of water AND H20that's how the name starts with hydro.
hydrogeologist
a person that studies gems is called a gemologist.
A person that studies animals is called a Zoologist.
A Dynamicologist.
a geologist
hydrogeologist
Hydrology. -Catherine(:
Numismatics
a person that studies gems is called a gemologist.
A person who studies genealogies is a genealogist.
a person who studies people but not an psychologist
Hydrology
what do you call somebody who studies snails.
A person that studies animals is called a Zoologist.
A person who studies birds is called an ornithologist.
A person who studies birds is called an Ornitholoigst
A sociologist is a person who studies sociology.