* Geologist: This is the most common term, encompassing anyone who studies the Earth's physical structure, composition, history, and processes.
* Geophysicist: This person focuses on the physical properties of the Earth, such as its gravity, magnetic field, and seismic waves.
* Geochemist: This person studies the chemical composition of the Earth, including rocks, minerals, and water.
* Oceanographer: This person studies the oceans, including their physical, chemical, and biological properties.
* Meteorologist: This person studies the atmosphere and weather patterns.
* Climatologist: This person studies the Earth's climate and climate change.
* Environmental Scientist: This person studies the interactions between human activity and the environment.
So, the best term depends on the specific area of Earth study!
