* Hydrologist: Primarily studies water on land, including its movement, distribution, and quality. They work with rivers, lakes, groundwater, and even snow and ice.
* Oceanographer: Studies the oceans, including their physical, chemical, and biological properties. They work with ocean currents, tides, salinity, and marine life.
* Meteorologist: Studies the atmosphere, including weather patterns and climate. They focus on water vapor, precipitation, and the interactions between the atmosphere and the oceans.
* Climatologist: Studies the Earth's climate and its long-term changes. They consider water cycles, ocean currents, and the effects of climate change on all water bodies.
So, depending on the specific focus, a scientist studying water in land, air, and oceans could be a hydrologist, oceanographer, meteorologist, or climatologist, or even a combination of these!
