This may be a geographer, geologist, or specifically a geomorphologist. These people are particularly helpful in mapmaking, especially the making of topographical maps.
Height above earths surface is called elevation
A person who studies mountains is called a geologist or a geomorphologist.
A person who studies the world is called a geographer.
A person who studies wildfires is typically called a fire ecologist or a wildfire researcher.
A person who studies cliffs is called a geologist or a geomorphologist, depending on the specific focus of their research.
A mineralogist or a geologist.
landforms
Height above earths surface is called elevation
A meteorite.
a person who studies people but not an psychologist
A person who studies genealogies is a genealogist.
A person who studies organisms is called a biologist.
a person that studies gems is called a gemologist.
what do you call somebody who studies snails.
A person who studies poisons is called a toxicologist.
A person who studies the earth is called a geologist.
A person who studies birds is called an ornithologist.