Organic Chemists spend 100% of their time studying and working with Carbon-based (Organic) Chemicals.
Many Mining and Chemical Engineers do too, depending on their area of major concentration.
A chemist studies the behavior of substances, including their composition, structure, properties, and reactions. They seek to understand how different substances interact with each other and with their environment.
A chemist studies the composition, structure, properties, and changes of matter. They explore the elements, molecules, and compounds that make up substances and how they interact with each other.
A chemist would study hydrogen, oxygen, and other basic substances as part of their work in the field of chemistry. Chemists focus on the composition, structure, properties, and reactions of substances at the molecular and atomic levels.
Ahemist is the type of scientist that studies elements, atoms, molecules .
A metallurgist is a scientist who specializes in the study of metals, their properties, and how they can be used in various applications. They may work to develop new metal alloys, improve metal production processes, or study the behavior of metals under different conditions.
A chemist studies the behavior of substances, including their composition, structure, properties, and reactions. They seek to understand how different substances interact with each other and with their environment.
A mineralogist studies minerals.
An ecologist studies pollution
The kind of scientist who studies Urology would be a Biologist, since Urology concerns a biological function (urination). If you mean the kind of doctor who studies Urology, that would be a Urologist.
meteoroligists
Audiologist
An Ichthyologist.
Botanist
cosmologists
seismologist
a biologist
Mathmaticion